Preliminary calculation

preliminary [prɪ'lɪmɪnɛri]

adj. 初步的，初级的;预备的;开端的;序言的; n. 准备工作;预赛;初步措施;（对学生等的）预考;

pre预先+limin门槛，限制+ary形容词后缀→入门以前→初步的

calculation [,kælkju'leʃən]

n. 计算，盘算;估计;计算的结果;深思熟虑，慎重的计划;

calcul计算 + ation 表示行为、状态、过程 → n.计算, 考虑

That's very nice of you. Where did you get it? It's not a print.

真细心！你从哪儿弄来的？这还不是复制的呢！

That nation is famous for its tourism.

那个国家以旅游业闻名。

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。