I purchased once each week 我每个星期购一次物
Review exercises from previous lessons once each week.
每个星期复习一次前面的课文。
The groups will meet for a 4 hour time slot, once each week.
实验小组要每周做一次实验,每次4小时。
If they are both in town, the two men meet for lunch once each week.
如果他们都在城里,两个男人满足午餐每周都有。
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