I . a [eɪ, ə], an before vowel [æn, ən] 冠词 不定的
1. a (undefined):
-
a
-
ein(e)
2. a after 否定:
3. a (one):
-
a
-
ein(e)
4. a before profession, nationality:
-
he's an Englishman
5. a introducing state:
-
a
-
ein(e)
8. a limiting uncountables:
-
a
-
ein(e)
9. a before unit:
11. a before unknown name:
12. a (denoting likeness):
-
a
-
ein(e)
13. a before family name:
-
a
-
ein(e)
14. a before date:
-
a
-
ein(e)
