1. take sth. to the extreme 走极端；使…至极端；
Beauty, as the saying goes, is in the eye of the beholder--and some fish have taken this idea to the extreme.
常言道，情人眼里出西施——而有些鱼儿还把这种想法推到极致。
2. fend off 挡开，避开(问题或人)；
He raised his hand to fend off the blow.
他抬起手来抵挡那一拳。
3. get to the bottom of 找到…的真正起因；查寻到…的根源；
I have to get to the bottom of this mess.
我必须查清造成这一混乱局面的真正原因。
4. in contrast 相比之下；与…相反；
In contrast, the lives of girls in well-to-do families were often very sheltered.
相反，生活在富裕家庭的女孩子通常都备受呵护。
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