http://www.pons.de/produkte/3-12-517841-X/(牛津大学出版社授权产品)
 
 I. cascade [美 kæˈskeɪd, 英 kasˈkeɪd] 名词
1. cascade (waterfall):
在《PONS词典》中的词汇
 
 
 
 | I | cascade | 
|---|---|
| you | cascade | 
| he/she/it | cascades | 
| we | cascade | 
| you | cascade | 
| they | cascade | 
| I | cascaded | 
|---|---|
| you | cascaded | 
| he/she/it | cascaded | 
| we | cascaded | 
| you | cascaded | 
| they | cascaded | 
| I | have | cascaded | 
|---|---|---|
| you | have | cascaded | 
| he/she/it | has | cascaded | 
| we | have | cascaded | 
| you | have | cascaded | 
| they | have | cascaded | 
| I | had | cascaded | 
|---|---|---|
| you | had | cascaded | 
| he/she/it | had | cascaded | 
| we | had | cascaded | 
| you | had | cascaded | 
| they | had | cascaded |