Unstuousness
油性, 润滑性
🗣️ 情景例句
She quit her job.
她辞职不干了。
Which one is easier?
哪一个是较简单的？
Before he retired, Frank was the head of a very large business company, but as a boy he used to work in a small shop.
在退休前，弗兰克是一家非常大的商业公司的经理，但他小时候却在一家小铺里做工。