Central(ized) oiling
[化] 集中润滑
🧩 词语组成解析
[化] 加脂
🗣️ 情景例句
It's raining cats and dogs outside.
外面下着倾盆大雨。
It's a poor heart that never rejoices.
不知人间有乐趣者最可怜。
I'm good at freestyle and breast stroke.
我擅长自由泳和蛙泳。