| 21. | Now they have had special cages made to protect them from these monsters. |
| 现在他们有了特制的笼子，用来保护他们免受大鱼的侵袭。
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| 22. | To protect themselves from the icy water, they had to wear special rubber suits. |
| 湖水冰冷刺骨，他们必须穿上一种特制的橡皮服以保护自己。
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| 23. | There has long been a superstition among mariners that porpoises will save drowning men by pushing them to the surface, or protect them from sharks by surrounding them in defensive formation. |
| 长期以来，海员中流传着一种迷信的说法，认为海豚会把快要淹死的人托到水面，救人性命；或在人们周围列队保护，使他们免遭鲨鱼伤害。
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| 24. | We should have a good pad in our right hand to protect our Middle Eastern interests. |
| 我们应当用右手拿着坚固的盾牌去捍卫我们在中东的利益。
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| 25. | Proper measures must be taken to limit the number of foreign tourists and the great efforts should be made to protect local environment and history from the harmful effects of international tourism. |
| 应该采取适当的措施限制外国旅游者的数量，努力保护当地环境和历史不受国际旅游业的不利影响。
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| 26. | The knights rushed into the palace to protect their king. |
| 骑士们冲向宫殿去保护国王。
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| 27. | They netted the fruit trees to protect them from birds. |
| 他们用网覆盖住果树以使其免遭鸟害。
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| 28. | He raised his arm to protect his child from hurt. |
| 他伸出手去，保护他的孩子免受伤害。
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| 29. | We must protect the earth. |
| 我们必须保护地球。
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| 30. | We must take measures to protect our interests. |
| 我们必须采取措施保护我们的利益。
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