Unit product cost

unit ['ju:nit]

n. 单位，单元;装置;个体;[数]单位数;

product ['prɑdʌkt]

n. 产品;结果;乘积;作品;

pro向前+duct引导，带来→引出的东西→产物，产品

cost [kɔst]

n. 价钱，代价;花费，费用;牺牲;[用复数][法律]诉讼费; vi. 价钱为，花费;估计成本; vt. 付出代价;估价;使丧失;使付出努力;

No problem, you have my blessing.

没问题，我会祝福你的。

I'm the worst pupil in my party.

我是我的聚会中最坏的学生。

Some stories are for swallowing. Imagine that you have found a good story, and, what is even more important, the time to enjoy it. You might be on holiday, or on a long train journey. If it is a good book, you might say, It's so good I can't put it dow

“这本书太好了，我舍不得把它放下。”但是并非所有的故事书都属于这一类。书评家们有时把一些书说成是“难以释手”的书，或者是“难以再读”的书。