Unctuosity
油性, 润滑性
✅ 同义词
🗣️ 情景例句
A rolling stone gathers no moss.
滚石不生苔，转业不聚财。
A friend in court is better than a penny in purse.
曩中有钱，不如朝中有友。
You are never too old to learn.
活到老，学到老。