日常英语场景30篇（4）
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Renovation Check: Tapping Walls for Hollow Spots
装修验收：敲击墙面检查空鼓
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Use a small rubber hammer to tap each wall section.
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A dull thud means solid plaster — that’s good.
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A hollow sound shows loose tiles or empty space behind.
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Mark hollow spots with chalk or sticky notes.
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Check all corners, edges, and around outlets carefully.
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Report problems to the contractor within three days.
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Take photos of marked areas for your record.
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Do not paint or cover walls until fixes are done.