two -week与 two week的区别 答案是，前者的意思是两周的时段或两周的周期；而后者的意思是两周。

例如， Last semester he took part in two -week Russian training class.这句的意思是,上个学期他参加了两周时间的俄语培训班。又例如, They must finish that work in two weeks.这句的意思是，他们必须在两周内完成那项工作。

twoweeks=两个礼拜 two-week=两个礼拜（长）的X比如，

"HeisinShanghaifortwoweeks.

"(他会在上海呆两个礼拜）。

"HeisinShanghaiforatwo-weekEnglishcourse.

"（他在上海参加一个为期两个礼拜的英语课程）。