Unknown quantity
[化] 未知量
🧩 词语组成解析
🗣️ 情景例句
Don't drink the tap water.
别喝自来水。
I was on the track team 10 years ago.
十年前，我在田径队。
Franz poured scorn on the idea, pointing out that his brother had been killed in action during the war.
弗朗兹对此不屑一顾，指出他兄弟已经在战争中阵亡了。