41.Go/keep on a diet
Im on a diet recently, so Id better skip the dessert.
42.Have a hard/difficult time with sth.
43.Have a temperature/fever
44.Have the final say:有决定权
45.Hold up:堵塞i，持枪拦截，举起，拦截
Did you hear that the convenience store next to the gas station was held up last night?
46.In a good/terribly /mood
47.In the long run:长期来看
It seems very experience. But in the long run it will save the money on the maintenance.
48.Join in:参与
49.Keep between the two of us:/keep a secret
50.Keep fit
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