do sth for+一段时间怎么说？

Question

如题所述

Answer 1

例如：写作业一小时，do my homework for an hour
即，for后直接加时间长度即可。再比如：do my homework for two hours
(希望可以帮到你！如有不明白，可继续发问，随时解答)

Answer 2

Tom has learned English for two years？