Coolometer
冷却率测定仪
🗣️ 情景例句
Yes, let me try. Oh, it's difficult. Will you show me how to do it?
好吧，让我试试吧！哦，真不容易。能教我怎么用吗？
It was after dark when we got back,and we were all tired.
我们回来时天已经黑了，并且我们都很疲倦。
How are you getting on with your English lessons?
你的英语课学得怎么样了？