| 1. | Cavities in teeth are caused by decay .
牙齿上的空洞是由龋蚀造成的。
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| 2. | The peritoneal cavity is a potential space .
腹腔是一个潜在的间隙。
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| 3. | The peritoneal cavity is a closed sac .
腹膜腔是一个封闭的囊腔。
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| 4. | This reduced body cavity is called a hemocoel .
这种缩小的体腔称为血腔。
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| 5. | The cavity is usually evacuated .
共振腔通常是抽空的。
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| 6. | Epithelium also lines the air tubes and lung cavities .
上皮组织还衬盖气管和肺腔。
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| 7. | No cavity is demonstrable(planigrams are usually required) .
无空洞可见（一般需断层摄影）。
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| 8. | The two cleaved facets define the fabry-perot cavity .
这两个解理面限定了法布里珀罗光腔。
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| 9. | The cavity in the tower is filled with high-strength concrete .
在塔内的空洞部分填满高强混凝土。
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| 10. | The stomach is a large pouch located high in the abdominal cavity .
胃是一只位于腹腔高处的大袋。
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