Coolometer
冷却率测定仪
🗣️ 情景例句
Excuse me, ma'am. Ticket, please.
对不起， 太太 ，车票请拿出来看一下。
We know not what is good until we have lost it.
有的时候不爱惜，失了以后空叹息。
I'm afraid it's the cheapest one we've got.
恐怕这一套算是我们这里最便宜的了。