http://www.pons.de/produkte/3-12-517841-X/(牛津大学出版社授权产品)
 
  
 在《PONS词典》中的词汇
| I | roller-skate | 
|---|---|
| you | roller-skate | 
| he/she/it | roller-skates | 
| we | roller-skate | 
| you | roller-skate | 
| they | roller-skate | 
| I | roller-skated | 
|---|---|
| you | roller-skated | 
| he/she/it | roller-skated | 
| we | roller-skated | 
| you | roller-skated | 
| they | roller-skated | 
| I | have | roller-skated | 
|---|---|---|
| you | have | roller-skated | 
| he/she/it | has | roller-skated | 
| we | have | roller-skated | 
| you | have | roller-skated | 
| they | have | roller-skated | 
| I | had | roller-skated | 
|---|---|---|
| you | had | roller-skated | 
| he/she/it | had | roller-skated | 
| we | had | roller-skated | 
| you | had | roller-skated | 
| they | had | roller-skated | 
无例句可用
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