| 21. | Biology is now widely studied, both in colleges and high schools. |
| 现在大学里和中学里都广泛学习生物学。
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| 22. | He has travelled widely in Africa. |
| 他到过非洲的许多地方。
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| 23. | a widely travelled writer. |
| 一位到过许多地方的作家。
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| 24. | It is widely used. |
| 它应用广泛。
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| 25. | The IBM Personal Computer was widely copied. |
| IBM的个人电脑被大规模地模仿。
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| 26. | Although papyrus was widely used over a long period of time, other materials were also used for writing in ancient Egypt. |
| 在古埃及，虽然纸莎草纸曾在一个长时期中被广泛使用，但是也有其它的书写材料。
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| 27. | Parenchyma cells are widely distributed throughout plants. |
| 薄壁组织细胞广泛地分布于整个植株。
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| 28. | It is widely acknowledged that computer and other machines have become an indispensable part of our society, which make our life and work more comfortable and less laborious. |
| 人们普遍认为计算机和其他机器已经成为我们社会必不可少的一部分。 它们使我们的生活更舒适，减少了大量劳动。
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| 29. | This method of using "controls" can be applied to a variety of situations, and can be used to find the answer to questions as widely different as "Must moisture be present if iron is to rust?" and "Which variety of beans gives the greatest yield in one season?" |
| 这种使用参照物的方法可以应用于许多种情况, 也能用来找到很不相同的各种问题的答案, 从“铁生锈, 是否必须有一定的湿度才行?”到“哪种豆类一季的产量最高?”
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| 30. | The press in China widely reported the event. |
| 中国报界广泛报道了此事。
|