it's never too late to mend=改变永远不会太迟
look before you leap=三思而后行
every dogs has its day=每个人都有幸运的一天
united we stand, divided we fall=团结就是力量
pull his leg=开玩笑
let it off the hook=放他一马
give him a hand=帮他一把
narrow escape=死里逃生
chip off the old block=有其父，必有其子
bed off roses=开心
too many cooks spoil the broth=人多反倒误事
once a blue moon=久久一次
on the ball=聪明又勤劳
smell a rat=发现有可疑之处
希望我的回答可以帮到你！加油！
