Once a week or two 一周一次或两次
After a week or two, the parasites invade red blood cells and reproduce thousands of times.
VOA: special.2009.05.26
I'm expecting that after we get going a week or two into the class, we just won't see any one's at all and people will get good grades on those.
我期望在我们做了一两周之后,我们不会看到有得一分的,且大家都能在这上得到不错的分数
I'm going to go somewhere tropical for a week or two.
我要到热带地区待上一两个礼拜。
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