英语词汇nightguard怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	nightguard
释义	nightguard 简明释义 n.夜间保安：在夜间执行保安职责的人员，负责保护建筑物、设施或人员的安全。网络释义短语 1 nightguard vital technique 夜间漂白术 2 nightguard vital tooth bleaching 活髓牙夜间漂白双语例句 1 Conclusion Nightguard vital tooth bleaching with TREE dental whitening gel is an effective, conveniency and safety therapy method and beneficial to periodontal tissue. 结论：TREE牙齿脱色凝胶用于活髓牙夜间漂白使用方便、安全、有效且对牙周组织有益。词源 1 nightguard: night +? guard FROM: wiktionary
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