1. Anthropologists have discovered that fear, happiness, sadness, and surprise are universally reflected in facial expressions.

人类学家们已经发现，恐惧，快乐，伤心和惊奇都会行之于色，这在全人类是共通的。

2. Because of its irritating effect on humans, the use of phenol as a general antiseptic has been largely discontinued.

由于苯酚对人体带有刺激性作用，它基本上已不再被当作常用的防腐剂了。

3. In group to remain in existence, a profit-making organization must, in the long run, produce something consumers consider useful or desirable.

任何盈利组织若要生存，较终都必须生产出消耗者可用或需要的产品。

4. The greater the population there is in a locality, the greater the need there is for water, transportation, and disposal of refuse.

一个地方的人口越多，其对水，交通和垃圾处置惩罚的需求就会越大。

5. It is more difficult to write simply, directly, and effectively than to employ flowery but vague expressions that only obscure one's meaning.

简明，直接，有力的写作难于花哨，含混而意义模煳的表达。

6. With modern offices becoming more mechanized, designers are attempting to personalize them with warmer, less severe interiors.随着现代办公室的日益自动化，设计师们正试图利用较为温暖而不太严肃的内部装饰来使其具有亲切感。

7. The difference between libel and slander is that libel is printed while slander is spoken.离间和蜚语的区别在于前者是书面的，尔后者是口头的。

8. The knee is the joints where the thigh bone meets the large bone of the lower leg.膝盖是大腿骨和小腿胫的连接处。

9. Acids are chemical compounds that, in water solution, have a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red.酸是一种化合物，它在溶于水时具有强烈的气味和对金属的侵蚀性，并且能够使某些蓝色植物染料变红。

10. Billie Holiday's reputation as a great jazz-blues singer rests on her ability to give emotional depth to her songs.Billie Holiday's

作为一个爵士布鲁斯乐杰出歌手的名声建立在能够赋予歌曲感情深度的能力。

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