make a comparison进行比较。comparison n. 比较；比喻。comparison with 同…比较。
comparison of ... to ... 是对某事物进行相同或相似点的比较,常译成“把…比作…”; comparison of ... with〔and〕... 是对相同点和差异点的比较,常译成“把…和…做比较”。

【例句】
He is rather dull in comparison with others. 
和别人比较起来，他相当迟钝。

Make a comparison to see which one is bigger? 
请你比一比,哪个大?