Fluorocarbon-14
[建] 四氯化碳
🧩 词语组成解析
[建] 碳氟化合物
fourteen
🗣️ 情景例句
She's very pretty.
她很漂亮。
Hasty climbers have sudden falls.
大起者有大落。
It is one of the most unpleasant discoveries which we all make that we must decline in this way,
人人必然会衰老。