1、连续几周
...for a week(持续)一星期for weeks连续几周in a week一周内,一周后 ...
2、几星期
... next week 下周,下星期 for weeks 几星期 (之久) every other week 每隔一周 ...
for six weeks治疗6周
lasted for three weeks持续周
stayed for two weeks呆两周
For two weeks两星期
There for three weeks那里待三周
Snowbound for Two Weeks阴差阳错
stay for three weeks呆三个星期;呆三周
for tow weeks两个星期;为拖车周;丝束周
internship for 22 weeks实习期为22周