come up against 碰到（困难、反对等）
come up to 达到；符合
come up with 追上，赶上；提出
come what may 不管发生什么事
in common 共用，公有，共同
keep company with 与…交往；和…亲热
compare……to 把…比作；与…相比较
by comparison 比较起来
in comparison with 与…比较
as concerns 关于
be concerned with 关心，挂念；从事于
on condition that 如果…；在…条件下
in consequence 结果是，因此
in consequence of 由于…的缘故
consist in 在于；存在于
consist of 由…构成，包含有
consult with 与…商量（协商）
on the contrary 正相反
to the contrary 意思相反的（地）
contribute to 有助于…，促成
beyond control 无法控制
out of control 失去控制