Titroscope
滴定式酸堿計(jì)
??? 情景例句
He's a very famous person in Chinatown. He's also from your home city, Peking.
他在唐人街大名鼎鼎，他也是從你的家鄉(xiāng)北京來的。
I've got a lot of things to do before I can leave.
在我能離開以前，我有很多事情做。
Behind you. Can you reach them?
在你后面！你夠得著嗎？