Carnot's sycle
[机] 卡诺循环
🗣️ 情景例句
When you learn a new verb, learn its various forms.
学到了新动词时，记住它的各种形式。
I know the boy whose father is a college president.
我知道那个男孩的父亲是大学校长。
Have you got a penfriend?
你有笔友吗？