51, fill a prescription 按处方抓药
    Would you please fill this prescription for me?
    52, fill in for 代替； 同义：fill one’s place(position, shoes); take the
    place of; take over Say, Dave, can you fill in for me tonight at the
    restaurant? I’d like to go out of town.
    53,food for thought 令人思考的东西；同义：thought-provoking
    There is a lot food for thought in what he had to say.
    54,for nothing 免费
    To pay to see that movie would be foolish, when you can see it on TV fornothing.
    55,from top to bottom 从上到下
    A: Maybe you lost your wallet in this room.
    B: I’ve searched it from top to bottom..
    56, get of on the wrong foot 开始事情就做错了
    I got off on the wrong foot, and I don’t have any idea which way to turnnow.
    57,get a lot out of something 从……学到很多
    The training program was difficult, but she got a lot out of it.
    58, get at 想说
    Do you understand what I’m getting at?
    59, get away with 对…..摆脱惩罚
    A: Did you know that Bob is leaving for home tonight? He isn’t planning to
    take his final exams.
    B: He can’t get away with that
    60,get going 赶紧行动； 同义：get moving
    A: It looks like we won’t have enough time to do all we wanted to.
    B: Who says we won’t? let’s get going.