第1个回答 2012-10-13
Spend... (time) to do sth 花...(多少时间)做某事
第2个回答 2012-10-13
1. it takes sb +time to do sth
It took me 3 hours to finish the work.
2. Spend time on sth/in doing sth.
Tom spends half an hour on homework/in doing homework.
第3个回答 2012-10-13
It takes sb st to do sth=sb spend st doing sth
sb指某人st指某段时间sth指某事
第4个回答 2012-10-13
i spend some time doing ...
It takes some time to do ...