在《PONS词典》中的词汇
在《PONS词典》中的词汇
在《PONS词典》中的词汇
I. birch <pl -es> [bɜ:tʃ, 美 bɜ:rtʃ] 名词
I. sil·ver [ˈsɪlvəʳ, 美 -ɚ] 名词 no pl
2. silver (coins):
4. silver 化:
II. sil·ver [ˈsɪlvəʳ, 美 -ɚ] 名词 modifier
1. silver:
2. silver (silver-coloured):
| I | birch |
|---|---|
| you | birch |
| he/she/it | birches |
| we | birch |
| you | birch |
| they | birch |
| I | birched |
|---|---|
| you | birched |
| he/she/it | birched |
| we | birched |
| you | birched |
| they | birched |
| I | have | birched |
|---|---|---|
| you | have | birched |
| he/she/it | has | birched |
| we | have | birched |
| you | have | birched |
| they | have | birched |
| I | had | birched |
|---|---|---|
| you | had | birched |
| he/she/it | had | birched |
| we | had | birched |
| you | had | birched |
| they | had | birched |
无例句可用
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单语范例（未经PONS编辑处理）
Woodland trees include hazel, rowan, hawthorn and silver birch.
en.wikipedia.org They are also distinguished cytologically, silver birch being diploid (with two sets of chromosomes), whereas downy birch is tetraploid (four sets of chromosomes).
en.wikipedia.org The bark of the downy birch is a dull greyish white, whereas the silver birch has striking white, papery bark with black fissures.
en.wikipedia.org The woodland is dominated by sycamore, oak and silver birch.
en.wikipedia.org Their diets include the silver birch aphid and pine aphids.
en.wikipedia.org