Contamination precipitation
[建] 杂质的沉积
🧩 词语组成解析
contamination
[kənˌtæmi'neiʃən]
n. 污染;弄脏;毒害;玷污;
precipitation
[prɪ'sɪpə'teʃən]
n. 匆促;沉淀;（雨等）降落;某地区降雨等的量;
pre 前缀,表示….前的,预先#词根助记：pre+cipit头→ation→落在前头→降落,下降
🗣️ 情景例句
2. We should all start exercising.
咱们都该去健身了。
I lack words, with which to express my thanks.
我无法以言语来表达我的感激之情。
As far as policy is concerned, I have to say something.
谈到政策，我得说几句。