You can't become a teacher before your taught.
在你教书之前，你不可能成为一名教师。
非洲谚语
You can't become a teacher before your taught.
在你教书之前，你不可能成为一名教师。
You can't dance on one leg.
你不能单腿跳舞。
You can't hide the smoke when the house is burning.
房子着火时你不能把烟藏起来。
You can't inject new ideas in a man's head by cutting it off.
你不能通过切断一个人的大脑来注入新的想法。
You can't jump a swamp before you reach it.
你不能在到达沼泽之前跳过它。
You can't measure a snake until it's dead.
只有死后才能测量一条蛇。
You can't order a goat to eat the hyena.
你不能命令山羊吃土狼。
You can't spread a net to catch a bird that is watching you.
你不能撒网去捉一只正在监视你的鸟。
You can't tell the colour of somebody's cloth from his shadow.
你不能从一个人的影子看出他衣服的颜色。
You can't walk before you can crawl.
你会爬之前不会走。
You cannot be a mouse and bat at the same time.
你不可能同时是一只老鼠和一只蝙蝠。
You cannot beat a child to take away its tears.
你不能为了孩子的眼泪而打他。
You cannot blindfold a man and expect him to ferry you across the river.
你不能蒙住一个人的眼睛，却指望他把你摆渡过河。
You cannot climb a bid of success with your hands tied up.
你不可能徒手攀登成功的高峰。
You cannot cure a wound by striking it gently.
轻轻击打伤口是无法治愈的。