Tricyclenic acid
[化] 三环萜酸
🧩 词语组成解析
🗣️ 情景例句
We have several package tours you may choose, from ten days to three weeks in Europe.
我们有几套欧洲旅游计划选择，时间从10天到3个星期。
Bill was very jumpy as he waited for the phone to ring.
贝尔忐忑不安地等着电话来。
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。