ki11 two birds with one stone 一箭双雕
a drop in the ocean 沧海一粟
within a stone's throw 一箭之遥
A fall into the pit, a gain in your wit.．吃一堑，长一智。
at sixes and sevens 乱七八糟
on second thoughts 再三考虑
by ones and twos 两两地，零零落落地
Two heads are better than one.三个臭皮匠胜过诸葛亮。
--Can you come down a little? --Sorry, it's one price for all.
He had one over the eight after be drank only half bottle of
One man's meat is another man's poison.人各有所好。
I'll love you three score and ten.我会一辈子爱你的。
Ten to one he has forgotten it．很可能他已经忘了。
His mark in math is second to none in the class.
I always believe my sixth sense。我总相信我的直觉。
He talks about you nine times out of ten when we have a chitchat.
The parson official1y pronounced that they became one。牧师正式宣告他们成婚。
I used to study in France in the year one。我早年曾在法国学习。
She is a second Lei Feng。她是雷锋式的人物。