Plasma physics
等离子物理
🧩 词语组成解析
🗣️ 情景例句
You were four or five years old, I think.
当时你才四、五岁 我想。
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。
To London.
到伦敦。