51. best make the ~ of很好地利用
52. had better do最好You'd better finish reading the book in this week,since I'm going to return it to the library.
would rather do宁愿I'd rather go there myself.
53. beyond超出…
The professor's lecture is beyond me/beyond my understanding (超出我的理解范围).
The apple on the tree is beyond my reach(够不着).
54. Both…and…两者都either…or…或者…或者…
neither…nor…两者都不
55. be bound to do注定…
You're bound to succeed as long as(只要)you keep on trying.
56. break into闯入break out爆发break through突破
break up(关系等)破裂
57. catch one's breath
58. call off=cancel取消call on=visit拜访call for请求，号召
The resident called for the people to fight against the invaders.
59. care for关心，在乎take care保重take care of=look after照顾
60. carry on继续carry out实施，执行
They decided to carry out the plan despite the opposition.
61. case事实，实情;箱子;案例;病例
in case(of)以防，万一Take my umbrella in case it rains.
In most cases在大多数情况下
In no case决不in no way by no means
62. catch up with赶上，保持一致keep up with keep pace with
63. (be)in charge of 掌管，负责
take charge of 掌管，负责
charge…for… 开价，要价
The short man there is in charge of our company.
The hotel charges $100 for a double room.
64. challenge 挑战
65. change 零钱(n.)换零钱(v.)
66. comfort v.& n安慰;舒适，舒服
comfortable舒服的，舒适的
67. have…in common有共同之处
Although they are twins they have little in common.
68. communicate 传播，交流
69. compare…to…把…比作…
compare…with…把…与…相比
Poets like comparing their lovers to red roses.
Compared with brain,computer still has some shortcomings.
