compact
a.紧凑的;坚实的 vt.使坚实 n.契约，合同
The compact design of the machine allows it to be stored easily.这台机器的设计小巧灵便，存放起来非常方便。
comparable
a.(with，to)可比较的，类似的;比得上的
A car of comparable size would cost far more abroad.同样大小的汽车在国外要贵得多。
comparative
a.比较的，相对的
After a lifetime of poverty, his last few years were spent in comparable comfort.他穷了一辈子，最后几年还算过得比较舒适。
compare
vt.(to，with)比较;(to)把…比作 vi.相比
The report compares the different types of home computer available.这份报告比较了目前可以买到的不同类型的家用计算机。
