Notehowsmooththeskinoftheupperarmis,thencompareittotheskinontheelbow.Notehowsmooththeskinoftheupperarmis,thencompareittotheskinontheelbow.请注意上臂的皮肤是多么光滑,然后把它和肘部的皮肤比较

Question

Note how smooth the skin of the upper arm is,then compare it to the skin on the elbow.
Note how smooth the skin of the upper arm is, then compare it to the skin on the elbow. 
请注意上臂的皮肤是多么光滑,然后把它和肘部的皮肤比较一下.
compare...to...不是 把什么比作什么 吗? 为什么这里却是 比较 ? 不该用with 吗?

Answer 1

compare to 也有比较的意思,一般常用with,多注意喽