http://www.pons.de/produkte/3-12-517841-X/（牛津大学出版社授权产品）
西班牙语
英语
http://www.pons.de/produkte/3-12-517841-X/（牛津大学出版社授权产品）
I. American [美 əˈmɛrəkən, 英 əˈmɛrɪk(ə)n] The American Dream 形
1. American (of USA):
II. American [美 əˈmɛrəkən, 英 əˈmɛrɪk(ə)n] The American Dream 名词
1. American C (from USA):
I. be <pres am, are, is, pt was, were, past part been> [美 bi, 英 biː] 动词 不及物动词
2.1. be (followed by an adjective):
2.2. be (when giving one's marital status):
3.1. be (followed by a noun):
3.2. be (playing the role of):
4.1. be (when talking about mental and physical states):
4.2. be (when stating one's age):
4.3. be (when giving prices, measurements, weight):
5.1. be (to exist, to live):
5.2. be (in expressions of time):
5.3. be (to take place):
6. be (to be situated, to be present):
7.1. be (in perfect tenses):
II. be <pres am, are, is, pt was, were, past part been> [美 bi, 英 biː] 动词 unpers
1.1. be (when talking about physical conditions, circumstances):
1.2. be (in expressions of time):
1.3. be (when talking about distance):
2.1. be (when introducing a person, an object):
III. be <pres am, are, is, pt was, were, past part been> [美 bi, 英 biː] 动词 助动词
1.1. be (to describe action in progress):
1.2. be (to speak of future events):
2.1. be:
2.2. be (when describing a process):
3.1. be (to describe events with future reference):
3.2. be (when expressing possibility):
3.3. be (when expressing obligation):
4. be (in hypotheses):
5.1. be (in tag questions):
5.2. be (in elliptical uses):
am1 [美 æm, əm, 英 am]
am 1st Pers 单数 of be
I. be <pres am, are, is, pt was, were, past part been> [美 bi, 英 biː] 动词 不及物动词
2.1. be (followed by an adjective):
2.2. be (when giving one's marital status):
3.1. be (followed by a noun):
3.2. be (playing the role of):
4.1. be (when talking about mental and physical states):
4.2. be (when stating one's age):
4.3. be (when giving prices, measurements, weight):
5.1. be (to exist, to live):
5.2. be (in expressions of time):
5.3. be (to take place):
6. be (to be situated, to be present):
7.1. be (in perfect tenses):
II. be <pres am, are, is, pt was, were, past part been> [美 bi, 英 biː] 动词 unpers
1.1. be (when talking about physical conditions, circumstances):
1.2. be (in expressions of time):
1.3. be (when talking about distance):
2.1. be (when introducing a person, an object):
III. be <pres am, are, is, pt was, were, past part been> [美 bi, 英 biː] 动词 助动词
1.1. be (to describe action in progress):
1.2. be (to speak of future events):
2.1. be:
2.2. be (when describing a process):
3.1. be (to describe events with future reference):
3.2. be (when expressing possibility):
3.3. be (when expressing obligation):
4. be (in hypotheses):
5.1. be (in tag questions):
5.2. be (in elliptical uses):
frequency modulation 名词 U 无线电
在《PONS词典》中的词汇
I. be [bi:] 动词 不及物动词 was, been
1. be + 名词/形 permanent state, quality, identity:
2. be + 形 mental and physical states:
5. be calculation, cost:
7. be (exist, live):
8. be location, situation:
9. be 过去分词 (go, visit):
10. be (take place):
11. be circumstances:
13. be expresses possibility:
II. be [bi:] 动词 impers vb
III. be [bi:] 动词 助动词 vb
1. be expresses continuation:
2. be expresses passive:
4. be expresses future in past:
5. be expresses subjunctive possibility in conditionals:
am [əm, stressed: æm] 动词 不及物动词
am 1st Pers 单数 of be
I. be [bi:] 动词 不及物动词 was, been
1. be + 名词/形 permanent state, quality, identity:
2. be + 形 mental and physical states:
5. be calculation, cost:
7. be (exist, live):
8. be location, situation:
9. be 过去分词 (go, visit):
10. be (take place):
11. be circumstances:
13. be expresses possibility:
II. be [bi:] 动词 impers vb
III. be [bi:] 动词 助动词 vb
1. be expresses continuation:
2. be expresses passive:
4. be expresses future in past:
5. be expresses subjunctive possibility in conditionals:
frequency modulation 名词
在《PONS词典》中的词汇
am [əm, stressed: æm] 动词 不及物动词
am 1. Pers 单数 of be
I. be <was, been> [bi] 动词 不及物动词
1. be + 名词/形 permanent state, quality, identity:
2. be + 形 mental and physical states:
5. be calculation, cost:
7. be (exist, live):
8. be location, situation:
9. be 过去分词 (go, visit):
10. be (take place):
11. be circumstances:
13. be expressing possibility:
II. be <was, been> [bi] 动词 impers vb
III. be <was, been> [bi] 动词 助动词 vb
1. be expressing continuation:
2. be expressing the passive:
3. be expressing future:
4. be expressing future in past:
5. be expressing the subjunctive in conditionals:
I. be <was, been> [bi] 动词 不及物动词
1. be + 名词/形 permanent state, quality, identity:
2. be + 形 mental and physical states:
5. be calculation, cost:
7. be (exist, live):
8. be location, situation:
9. be 过去分词 (go, visit):
10. be (take place):
11. be circumstances:
13. be expressing possibility:
II. be <was, been> [bi] 动词 impers vb
III. be <was, been> [bi] 动词 助动词 vb
1. be expressing continuation:
2. be expressing the passive:
3. be expressing future:
4. be expressing future in past:
5. be expressing the subjunctive in conditionals:
frequency modulation 名词
| I | am |
|---|---|
| you | are |
| he/she/it | is |
| we | are |
| you | are |
| they | are |
| I | was |
|---|---|
| you | were |
| he/she/it | was |
| we | were |
| you | were |
| they | were |
| I | have | been |
|---|---|---|
| you | have | been |
| he/she/it | has | been |
| we | have | been |
| you | have | been |
| they | have | been |
| I | had | been |
|---|---|---|
| you | had | been |
| he/she/it | had | been |
| we | had | been |
| you | had | been |
| they | had | been |
单语范例（未经PONS编辑处理）
A small source of radioactive americium is placed so that it maintains a current between two plates that effectively form an ionisation chamber.
en.wikipedia.org With its half-life of 432.2 years, the americium in a smoke detector includes about 3% neptunium after 19 years, and about 5% after 32 years.
en.wikipedia.org A large amount of work has been done on the solvent extraction of americium.
en.wikipedia.org If consumed, americium is excreted within a few days and only 0.05% is absorbed in the blood.
en.wikipedia.org Americium is a relatively soft radioactive metal with silvery appearance.
en.wikipedia.org