3 . 皮肤，身体最大的器官，充当着抵御疾病和太阳光线的一道屏障。(organ；barrier；ray)(汉译英)

4 . I have a dream that my four little children will one day live in a nation where they will not ______________ (根据他们的肤色来判断) but by the content of their character. (根据汉语提示完成句子)

5 . 不要把皮肤直接暴露在阳光下。(expose...to)(汉译英)
________________________________________________________________________

8 . 请匹配单词及其英文解释。

A. making (things or people) be memorized by others. B to show or express strong disagreement with something C. the natural outer covering of the body of a person, animal, fruit, etc. D. to form an opinion about something or someone after careful thought E. an event in which a large number of people walk through a public place to express their support for something, or their disagreement with something F. the practice of unfairly treating a person or group of people differently from other people or groups of people G.a discussion between two teams on a same topic.

1. There is no use protesting. I will not change my mind.
2. Company policy does not allow discrimination against women.
3. She loved the feeling of her soft hair against the skin.
4. He is a very impressive public speaker.
5. The group of students in the picture was going on a march against war.

9 . Remove any clothes using scissors_________ (如果有必要的话), ________________________________(除非你看到衣服粘在烧伤的皮肤上)．(根据汉语提示完成句子)