It rains cats anddogs.
倾盆大雨
Look before you leap.
三思而后行。
Like father, like son.
有其父必有其子
Love me, love my dog.
爱屋及乌
He is a green hand.
没有经验的人
So said ， so done.
言出必行
All roads lead to Rome.
条条大路通罗马。
No pain, no gain.
不劳无获。
Time is money.
时间就是金钱。
Time flies.
光阴似箭.
You are a lucky dog.
你是一个幸运儿。