在《PONS词典》中的词汇
I. birch <pl -es> [bɜ:tʃ, 美 bɜ:rtʃ] 名词
I. tree [tri:] 名词
II. tree [tri:] 名词 modifier
I. bark2 [bɑ:k, 美 bɑ:rk] 名词
有关生物学的词语(Klett)
有关交通运输业的词语(PONS)
| 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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