http://www.pons.de/produkte/3-12-517841-X/(牛津大学出版社授权产品)
 
  
 I. tunnel [美 ˈtənl, 英 ˈtʌn(ə)l] 名词
II. tunnel <tunneling tunneled 美 tunnelling tunnelled 英> [美 ˈtənl, 英 ˈtʌn(ə)l] 动词 不及物动词
wind tunnel 名词
-  wind tunnel
-  
在《PONS词典》中的词汇
 
  
  
  
  
  
 | I | tunnel | 
|---|---|
| you | tunnel | 
| he/she/it | tunnels | 
| we | tunnel | 
| you | tunnel | 
| they | tunnel | 
| I | tunnelled / 美 tunneled | 
|---|---|
| you | tunnelled / 美 tunneled | 
| he/she/it | tunnelled / 美 tunneled | 
| we | tunnelled / 美 tunneled | 
| you | tunnelled / 美 tunneled | 
| they | tunnelled / 美 tunneled | 
| I | have | tunnelled / 美 tunneled | 
|---|---|---|
| you | have | tunnelled / 美 tunneled | 
| he/she/it | has | tunnelled / 美 tunneled | 
| we | have | tunnelled / 美 tunneled | 
| you | have | tunnelled / 美 tunneled | 
| they | have | tunnelled / 美 tunneled | 
| I | had | tunnelled / 美 tunneled | 
|---|---|---|
| you | had | tunnelled / 美 tunneled | 
| he/she/it | had | tunnelled / 美 tunneled | 
| we | had | tunnelled / 美 tunneled | 
| you | had | tunnelled / 美 tunneled | 
| they | had | tunnelled / 美 tunneled | 
