Vasicoline
鴨嘴花考林堿
??? 情景例句
I think you are getting off the subject. Could we get back to the main point, please?
我覺得你跑題了。 我們能不能回到主題上來？
May I borrow your pencil?
我能借你的鉛筆嗎？
That's a good buy.
那買得便宜。