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 | walk up |
|---|---|
| you | walk up |
| he/she/it | walks up |
| we | walk up |
| you | walk up |
| they | walk up |
| I | walked up |
|---|---|
| you | walked up |
| he/she/it | walked up |
| we | walked up |
| you | walked up |
| they | walked up |
| I | have | walked up |
|---|---|---|
| you | have | walked up |
| he/she/it | has | walked up |
| we | have | walked up |
| you | have | walked up |
| they | have | walked up |
| I | had | walked up |
|---|---|---|
| you | had | walked up |
| he/she/it | had | walked up |
| we | had | walked up |
| you | had | walked up |
| they | had | walked up |