56. collaboration n. 合作 in ~ with
57. collide v. 相撞; 冲突 The two opinions ~ with each other.
58. commence v. 开始
59. commute v. 乘车上下班 >I have to ~ between the university town and the downtown area.
60. compact a. 紧凑的, 结实的 a ~ car/office
61. compatible a. 相容的; 兼容的>That husband and wife are very ~.
62. compensate v. 赔偿 >The insurance company ~d the man for his injuries.
63. compile v. 汇编, 编辑 ~ a encyclopedia
64. complement v. 补充,与。。。相配 The music ~s the film well.
65. compliment v. /n. 赞美
66. comply with v. 遵从
67. compulsory a. 必做的 ~ education
68. conceive of v. 构想 I can’t ~ of why he did such a stupid thing!
69. confidential a. 机密的
70. conform to v. 遵守 ~ to the local customs