问题描述：
翻译thx!
1,rob the cradle
2, a flash in the pan
3, come in handy
4, get off one's ass
问题解答：
我来补答
1.rob the cradle
同对方年龄相差悬殊的人亲热相处或结婚
汉语俗语叫“老牛吃嫩草”
2.a flash in the pan
n.
昙花一现
--
“昙花一现”的概念可以用a flash in the pan的短语来表示.此语中flash的意思是“闪光”,pan是旧式火枪的“药池”.据说,在使用这种火枪的时候,有时只见药池冒出火花却发不出子弹.后来人们将此现象转而比喻一时“走红”或“成功”的人或事.该语常作表语,用作定语时需用连接号：a flash-in-the-pan.
例：那个可是也只是昙花一现,出了几张唱片就消声匿迹了.
That singer was only a flash in the pan. He disappeared into the air after having made one or two records.
3.come in handy
v.
迟早有用, 派得上用场
俗话说：“书到用时方恨少”多学着点吧,迟早有用
4.get off my ass
少罗嗦 还可以翻译成 滚蛋 离我远点
---------
