词组 | how long for |
释义 | how long (ago) • for how long/how long for - How long have you been waiting? (Not *How long ago*) (how long to refer to a period of time) - How long ago did you arrive? - A couple of hours ago. (how long ago to refer to a point of time in the past) - How long is your dining table? (= what length?) - I visited Gibraltar once. - For how long/How long for? (= for what period of time?; for is compulsory with how long here) - I visited Gibraltar once. - How long ago? (= when? ago is compulsory after how long here) |
随便看 |
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。