Enthalpogram
焓测定(曲线)图
🗣️ 情景例句
We once found a cat.
我们有一次找到一只猫，
I seldom write a letter.
我很少写信。
I know that he's doing his best, but he says that he is a little weak in Chinese.
我知道他非常努力，但他说他的中文有点儿差。