| 1. | This cave has a good echo. |
| 这个洞的回声很大。
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| 2. | Where's the entrance to the cave ? |
| 这个洞穴的入口在哪里？
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| 3. | This cave was used by smugglers in the eighteenth century. |
| 这个洞穴是十八世纪走私的人使用的。
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| 4. | A girl standing at the mouth of the cave beckoned him in. |
| 站在洞口的一个姑娘摆手叫他进去。
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| 5. | They blocked up the entrance to the cave with big rocks. |
| 他们用巨石把洞口堵死。
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| 6. | His voice reverberated from the walls of the cave . |
| 他的声音从洞穴的壁上反折回响。
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| 7. | The lantern casts a clear light into the cave . |
| 那盏提灯照亮了山洞。
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| 8. | They drew lots as to who should enter the cave first. |
| 他们抽签决定谁先进入洞穴。
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| 9. | They picked a cave for their night camp. |
| 他们挑了一个山洞作为过夜的营地。
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| 10. | Don't climb on the old roof, it might cave in. |
| 别爬上那旧屋顶，它会塌下来的。
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