He had no difficulty working out the problems.把 working out 换成 to have worked out行吗?
He had no difficulty working out the problems.把 working out
答案:1 悬赏:40 手机版
解决时间 2021-02-28 00:00
- 提问者网友：你独家记忆
- 2021-02-27 19:30
最佳答案
- 五星知识达人网友：慢性怪人
- 2021-02-27 20:13
这是一个固定词组,have difficulty doing sth
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