Performance grammar
[计] 性能文法
🧩 词语组成解析
🗣️ 情景例句
Are you here on business or for pleasure?
你来这儿是出差还是游玩？
I had a shot of penicillin.
我打了一针青霉素。
He loved to be told that one of his imaginary products was temporarily out of stock and he would faithfully promise to call again at some future date, but of course he never did.
他爱听售货员说他想像出来的那种东西暂时脱销，于是他就煞有介事地许诺改天再来光顾。当然，他再也不会来了。