21. | The police grouped ( themselves ) round the demonstrators. |
| 警察围聚在示威者的四周。
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22. | Several witnesses at the trial were clearly prepared to perjure themselves in order to protect the accused. |
| 在审判时几个证人显然已准备好为袒护被告而作伪证。
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23. | The slaves prostrated themselves at their master's feet. |
| 奴隶们拜倒在主子的脚下。
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24. | The pilgrims prostrated themselves before the altar. |
| 朝圣者都匍伏在圣坛前。
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25. | Trees propagate themselves by seeds. |
| 树木靠种子繁衍。
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26. | The teacher left the children to puzzle out the answer to the problem themselves . |
| 老师让学生动脑筋自行寻找问题的答案。
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27. | The soldiers camouflaged themselves with leaves and branches. |
| 士兵们用树枝树叶把自己伪装起来。
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28. | The raiders disguised themselves as security guards. |
| 袭击者都装扮成了保安人员。
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29. | They can't afford a home help, so they have to do for themselves . |
| 他们请不起女佣人,所以只好自己做家务活。
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30. | People were falling over themselves to be introduced to the visiting film star. |
| 人们千方百计地想把自己介绍给到访的影星。
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