1.consider about 思考
2.concern oneself about/with 关心
3.in conclusion 最后一点;at the conclusion of 当结束时
4.condemn sb. to 判决
5.on condition that 以为条件，假如
in that = because 因为
now that = since 既然
for all that = although尽管
6.in/out of condition 健康状况好/不好
in good condition 处于良好状态
7.confess 承认，供认
confess to a crime承认罪行
8.confide in 对讲真心话，依赖
9.in confidence 推心置腹地;
with confidence 满怀信心地;
have confidence in 对有信心，
10.confidence in sb./sth. 对的信赖
11.be confident of 有信心
confidential 机密的
12.confineto 把限制在某范围内
13.confirm sb. in 使某人更坚定
14.conform to 符合，遵照，遵守;l)obey服从;2)observe;3)comply with照4)keep to遵循;5)abide by服从;6)stick to按做
15.be confronted with 面对，面临
16.congratulate sb. on 祝贺
17.in connection with 关于
18.be conscious of 觉察，知道
19.consent to 同意
20.in consequence 结果