声锁又称“声阱”。是具有大量声吸收的小室，用来使房间的两边连通，但声耦合很小。
房子的前门上了锁，会议室一片黑暗，口令是一句《吠陀》经文，谈话声很低。
Our front door would be locked, the meeting room in darkness, the watchword a Vedic mantra, our talk in whispers.
钥匙在锁里“咔嗒”响了一声。
“如果我锁了的话，那把剑也不会帮他逃出来。”拉环答道。戈努克又笑起来，德克也淡淡地笑了两声。
"If I had, the sword would not have helped him break out," replied Griphook. Gornuk laughed again and even Dirk gave a dry chuckle.
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