Lubricating
润滑的
✅ 同义词
🗣️ 情景例句
It might be a little cold.
可能有点凉了。
If he doesn't accompany him, I will.
如果他不，我将陪伴他。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，