http://www.pons.de/produkte/3-12-517841-X/(牛津大学出版社授权产品)
maintain [美 meɪnˈteɪn, 英 meɪnˈteɪn, mənˈteɪn] 动词 trans
1. maintain (continue, preserve):
2. maintain (keep in good condition):
- maintain house/garden/car/machine
-
- maintain aircraft/database
-
3. maintain (provide for):
在《PONS词典》中的词汇
有关冷却技术的词语(GEA)
| I | maintain |
|---|---|
| you | maintain |
| he/she/it | maintains |
| we | maintain |
| you | maintain |
| they | maintain |
| I | maintained |
|---|---|
| you | maintained |
| he/she/it | maintained |
| we | maintained |
| you | maintained |
| they | maintained |
| I | have | maintained |
|---|---|---|
| you | have | maintained |
| he/she/it | has | maintained |
| we | have | maintained |
| you | have | maintained |
| they | have | maintained |
| I | had | maintained |
|---|---|---|
| you | had | maintained |
| he/she/it | had | maintained |
| we | had | maintained |
| you | had | maintained |
| they | had | maintained |