重点讲解：
1.first hand 第一手的；直接的
例句：It must be a great comfort to you to have all the news at first hand.
能够直接获得所有消息，对你一定是莫大的安慰。

2.mind is made up 胸有成竹；心意已决
例句：Ronnie: Uh, Jack, my mind is made up: I'm going to play Early Bird.
罗尼：呃，杰克，我已经打定主意买“捷足先登”赢了。

3.child's play 儿戏；很容易做的事情
例句：Today it is a child's play for a man to drive a car .
在今天开汽车是一件轻而易举的事情。

4.walk across 穿过；走过；迈过
例句：Let's walk across the square to the bank.
咱们步行穿过广场到银行去。

5.flatter myself 自以为；自夸
例句：Technically, I'm the competition, but I don't flatter myself that I'm even in the same league with you.
照理说，我也算是同行，不过，我可不敢夸说自己和你处于同一等级。