题目内容：

Human faical expressions differ from those of fanimals in the degree to which they can be ddeliberately controlled and modified.全句翻译并语法解释.

优质解答

1、句子成分和结构分析：【Human faical expressions主语】【 differ from 谓语】【those of （animals 给错了!）宾语】【 in the degree 程度状语,degree做先行词】【to which they can be （deliberately 打错了哦...

追问：

请问which在定语从句中做什么成份，从字面上翻译，这个定语从句的意思是什么呢？

追答：

which在定语从句中指代先行词【degree】。 to which=to the degre,意思是【到那种程度】；整体翻译中就是【到、、、、、、程度】。 结构上来看你，应该是作介词to的宾语。