Since we have no money, we cannot buy it.
因为我们无钱,我们不能买它。
No, dear, you've already had one, so we cannot buy it.
不行亲爱的,你已经有一个了,所以我们不能再买了。
We need portable wood burning stove, but we cannot buy it in our local market because it is expensive for us.
俺需要移动木头燃烧炉子,但是俺们不能买她在俺们的局域市场因为它是贵的为了俺们。
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