讲解英语词组的用法

1.roar at 对着...怒吼/咆哮/吼叫 如:You need not roar at me.
2.act the part of 扮演...的角色 如: He is invited to act the part of a judge.
3.be keen on 喜爱 如:Tom was saying you might be keen on yoga.
4.jump out of one's skin 欣喜若狂/大吃一惊 如: I'm about to jump out of my skin.
5.green with envy 非常嫉妒的 如:If you buy that car, you'll make your friends green with envy.
6.a piece of cake 小菜一碟/非常容易(简单) 如: That problem is just a piece of cake.
7.shout at 对...大叫(含责备之意) 如: The boss shouted at his secretary.
8.look as if 看起来似乎... 如: He looks as if I owed him a lot of money.
9.towards us 朝/向我们 The policeman ran towards us.