表达

Don't judge a book by its cover.
不要只看封面就给一本书下评语。

Don't have too many irons in the fire.
铁炉内不要同时放入太多铁块。

Don't halloo [shout / whistle] until you are out of the wood.
没有走出森林，不要先欢呼。

Don't empty [ throw] the baby out with the bath water.
倒洗澡水不要连婴儿也给倒了。

Don't cut the bough you are standing on.
不要砍了自己所站的枝干。

Don't cut off your nose to spite your face.
不要割了鼻子来生脸的气。

Don't cry stinking fish.
不要叫卖臭鱼。

Don't cry for the moon.
不要哭着要月亮。

Don't cross the bridge before you get to it.
桥到了再过桥。

Don't count your chickens before they are hatched.
小鸡未孵出前，先别盘算有几只。

Don't change horses in midstream.
不要在河中换马。

Don't cast your pearls before swine.
别把珍珠投给猪。