| 词组 | able to |
| 释义 | couldn't • wasn't able to • was unable to • didn't manage to - I tried to ring yesterday, but I couldn't get through/wasn't able to/was unable to/didn't manage to get through to you. (couldn't, but not could, can be used for particular events in the past; see above) |
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英语用法大全包含5463条英语用法指南，基本涵盖了全部常用英文词汇及语法点的翻译及用法，是英语学习的有利工具。