Etafedrine
[化] 乙非君; 乙基麻黃素
??? 情景例句
Life has its ups and downs, but it certainly has its rewards.
人生有沉也有浮，但是無(wú)論怎樣都確有其價(jià)值。
Happens all the time.
常有的事。
Dear May,
親愛的梅，