一个大学男生说他去年戴了灰色的美瞳。

University student Lu Zhengwei said he tried wearing grey cosmetic contacts last year.

youdao

瞳仁认证虽然不错，但滴入扩瞳药水就可以轻易地改变瞳仁大小。所以说没有什么技术是绝对可靠的。

"Irises are very good for recognition but you can put in dilation drops which change the iris completely. No technique is infallible, " he said.

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所以说，一个好的领导不仅仅满足于关心什么缉福光凰叱好癸瞳含困已经存在。

So, a good leader is not satisfied with the care what already exists.

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