Lockset
锁具
🗣️ 情景例句
References?
备询人？
In all things, it is better to hope than to despair.
凡事抱希望为佳，不应悲观而失望。
Every solid object will reflect a sound, varying according to the size and nature of the object.
任何固体者反射声音，反射的声音因物体的大小和性质的不同而不同。