1. This was a great lesson to me, and now I saw, though too late, the folly of beginning a work before we count the cost, and before we judge rightly of our own strength to go through with it.
    这事给了我很大教训。尽管为时太晚，我现在明白了：在开始做一件事之前，不先估计一下代价，不先正确地估计自己是否有做完这件事的力量，那真是太愚蠢了！

2. This in turn pushes up the program cost, estimated at about $3,800, including air fare.
    这样就增加了留学的费用，加上飞机票，估计费用大约为3,800 美元。

3. How much does this house cost?
    这房子卖多少钱?

4. His defiance of the law cost him his life.
    他藐视法律付出了生命的代价。

5. How many dollars did you cost?
    你花了多少美元?

6. How much does the sweater cost?
    这件毛衣值多少钱?

7. How much does it cost?
    请问它多少钱？

8. How much does this house cost? $68,500.
    这座房子卖多少钱？68，500英镑。

9. However, all my devices to get it into the water failed, though they cost me infinite labour.
    然而，使它下水的所有计划都失败了。尽管为此我付出了巨大的努力。

10. How much would a suitable dress cost, something simple?"
    一件合适的礼服要多少钱，简单一点的？”