他们已经工作两个小时了.They have been working for two hours.They have worked for two hours.哪个他们已经工作两个小时了.They have been working for two hours.They have worked for two hours.哪个对,两个句子有何区别.
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他们已经工作两个小时了.They have been working for two hours.They have worked for two hours.哪个他们已经工作两个小时了.They have been working for two hours.They have worked for two hours.哪个对,两个句子有何区别.
他们已经工作两个小时了.They have been working for two hours.They have worked for two hours.哪个
他们已经工作两个小时了.
They have been working for two hours.
They have worked for two hours.
哪个对,两个句子有何区别.
他们已经工作两个小时了.They have been working for two hours.They have worked for two hours.哪个他们已经工作两个小时了.They have been working for two hours.They have worked for two hours.哪个对,两个句子有何区别.
They have been working for two hours.
现在完成进行时.
表示截止现在,他们已经工作2小时(并仍在继续工作).
They have worked for two hours.
现在完成时.
表示他们已经工作了2小时,但不见得仍在继续工作.
上面那个句子强调一直在做。下面那个语气较平淡。都不算错,关键看语境
都对吧 第一个句子更强调了他们一直工作
都对
第一个更强调正在做