working long hours, woking for long hourssince going to work at the agency, he has been working long hours. 后面为什么不是woking for long hours呢?经常说到的都有work for a long time...这个里面为什么不加for呢.谢谢.
网友回答
for后面加段时间
可以这样说He has worked for long hours.
而问题这句是个现在完成进行时,所以work后面直接加时间而不用介词
======以下答案可供参考======
供参考答案1:
如果是加了for 后面要接具体的时间