7. keep doing sth. 一直做某事 I kept studying English for 1 hour yesterday evening. 昨天晚上,我一直学了1小时英语。 8. put off doing sth. 推迟做某事 Sometimes students put off doing their homework until the last minute. 有时学生们会拖延到最后一分钟...
3. keep on doing sth. 继续做某事(表动作的反复) keeping doing sth. 保持做某事(表动作或状态的持续) 4. be sure about +名/代/V-ing“肯定” Are you sure about that? make sure (that)+从句“…...确保...…” Make sure that both doors are closed when you go...
7. keep doing sth. 一直做某事 I kept studying English for 1 hour yesterday evening. 昨天晚上,我一直学了1小时英语。 8. put off doing sth. 推迟做某事 Sometimes students put off doing their homework until the last minute. 有时学生们会拖延到最后一分钟...
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