是compared with，其用法是:

compared with置於句首的原因：當compare with使用其被動語態

，結構是be（am，is are，was，were等） compared with，如果其主語與主句主語相同，則該主語可以省略，同時be動詞也省略，那麼compared with就位於句首

Today, more than 43 percent of Californians under the age of eighteen are Hispanic, compared with about 35 percent a decade ago.

compare…with意為“把……與……相比”，側重指兩者間的區別。 如：Compare this car with that one, and you will find the differences between them． 把這輛汽車與那輛汽車相比較，你就會發現它們之間的區別。