Compound formation
[建] 化合物之形成
🧩 词语组成解析
formation
[fɔ:'meiʃən]
n. 形成;构成，结构;形成物;编队，队形;
🗣️ 情景例句
I have a new math program, and I want to learn how to use it.
我有一个新的数学程式 我想学习怎样用。
I want to report a theft.
我要报一宗盗窃案。
I haven't seen him for five years.
我五年没有见到他了。