??? 情景例句
Richard, did you go to the aerobics class, really? Richard
你真的上了有氧運(yùn)動課嗎？
One never loses anything by politeness.
有禮貌對自己不會吃虧。
I've read about it,but I'd like to know more about it.
我已經(jīng)知道了一點(diǎn)兒，但我還想多了解一些。