51.Keep in touch with
   
    52.Knock it off/stop
   
    53.Lay off/fire
   
    54.Let out:放走，泄露
   
    55.Look for a needle in a haystack:大海捞针
   
    56.Make a hit:获得成功
   
    57.Make ends meet:使收支相抵
   
    58.Make sense:有意义
   
    59.Make up;补偿，化妆，补考
   
    60.Meet each other half way: make an agreement