Picknometer
比重瓶
🗣️ 情景例句
He's such a workaholic that he doesn't know how to spend his leisure time.
他是个工作狂，以至于不懂得如何打发他的空闲时间。
Happy is the man that owes nothing.
无债一身轻。
I went on an excursion recently, but my trip took me longer than I expected.
最近我作了一次短途旅行，但这次旅行所花费的时间比我预计的要长。