Levophanol
[藥]左嗎南(商品名, 左旋-3-羥-N甲基嗎啡烷, 止痛藥)
??? 情景例句
I don't have the heart to tell her.
我沒有勇氣告訴她。
Let the cobbler stick to his last.
安分守己。
It is always wiser and safer to face up to reality,
遇事采取面對(duì)現(xiàn)實(shí)的態(tài)度總是比較明智和穩(wěn)妥的，