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 | slip up | 
|---|---|
| you | slip up | 
| he/she/it | slips up | 
| we | slip up | 
| you | slip up | 
| they | slip up | 
| I | slipped up | 
|---|---|
| you | slipped up | 
| he/she/it | slipped up | 
| we | slipped up | 
| you | slipped up | 
| they | slipped up | 
| I | have | slipped up | 
|---|---|---|
| you | have | slipped up | 
| he/she/it | has | slipped up | 
| we | have | slipped up | 
| you | have | slipped up | 
| they | have | slipped up | 
| I | had | slipped up | 
|---|---|---|
| you | had | slipped up | 
| he/she/it | had | slipped up | 
| we | had | slipped up | 
| you | had | slipped up | 
| they | had | slipped up | 
无例句可用
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