"Compared to" 或 "In comparison to" 都可以用来表示 "相比较来说"。
其中 "compared to" 来自中文 "compare to"，它的意思是将两个事物进行比较，以表示它们之间的相似或不同。
例如：
"She is taller compared to her sister." (她比她妹妹高。)
"He is not as smart compared to his classmates." (他不如他的同学聪明。)
另外 "in comparison to" 来自中文 "in comparison"，它的意思是在进行比较时，将两个事物进行对比。
例如：
"In comparison to other cities, New York is very expensive." (相比其它城市来说，纽约非常昂贵。)
"In comparison to what we had hoped for, the sales figures are disappointing." (相比我们的期望，销售数字令人失望。)