Cathepsis
细胞(组织)溶解
🗣️ 情景例句
They're still open?
他们现在还开着吗？
Then, all of a sudden, it became cloudy and began to rain.
可是突然天就变了，乌云密布并下起雨来。
His parents did not know what was wrong.
他的父母亲不知道他有什么毛病。