http://www.pons.de/produkte/3-12-517841-X/(牛津大学出版社授权产品)
 
  
 undermine [美 ˌəndərˈmaɪn, 英 ʌndəˈmʌɪn] 动词 trans
 
  
 在《PONS词典》中的词汇
 
  
 undermine [ˌʌndəˈmaɪn, 美 -dɚˈ-] 动词 trans
1. undermine (tunnel under):
 
  
 undermine [ˌʌn·dər·ˈmaɪn] 动词 trans
1. undermine (damage, sap, weaken):
| I | undermine | 
|---|---|
| you | undermine | 
| he/she/it | undermines | 
| we | undermine | 
| you | undermine | 
| they | undermine | 
| I | undermined | 
|---|---|
| you | undermined | 
| he/she/it | undermined | 
| we | undermined | 
| you | undermined | 
| they | undermined | 
| I | have | undermined | 
|---|---|---|
| you | have | undermined | 
| he/she/it | has | undermined | 
| we | have | undermined | 
| you | have | undermined | 
| they | have | undermined | 
| I | had | undermined | 
|---|---|---|
| you | had | undermined | 
| he/she/it | had | undermined | 
| we | had | undermined | 
| you | had | undermined | 
| they | had | undermined | 
