Periodometer
调和分析仪
🗣️ 情景例句
He started with them almost forty years ago.
他在那里做了快四十年了。
When would you like to leave?
你要什么时间离开呢？
Well, every time you get back at night, you drop your shoes on the floor.
唔，每一次晚上回来时，你都把鞋子丢在地板上。