Fractionating
分馏, 精馏
🗣️ 情景例句
have become good friends, haven't you?
成了好朋友，不是吗？
We can spend hours talking about computers.
我们可以花些时间一起聊聊电脑。
'He had travelled only seven miles across the Channel when his engine failed and he was forced to land on sea.
但他只在海峡上空飞行7英里，引擎就发生了故障，他只好降落在海面上。