Isotope abundance
[化] 同位素丰度
🧩 词语组成解析
🗣️ 情景例句
Have you ever taken Cathay Pacific?
你有没有搭过国泰航空公司的班机？
A good head and an industrious hand are worth gold in any land.
聪明脑袋勤劳手，走遍天下贵如金。
He made up his mind to once again ask for her hand in marriage.
他下决心再一次向他求婚。