Scien
n. 三英洁具（公司名）
🗣️ 情景例句
I don't know.
我不知道。
He who rides a tiger is afraid to dismount.
骑虎者难下。
You go to the school office and telephone the police. Please hurry up!
“你去学校办公室给警察打电话。请快一点！快点！”