A safety device is defined in the wrench of the lock, in order to avoid that the lock tongue enter into the key hole because of spring rusting on driving.是什么意思_A safety device is defined in the wrench of the lock, in order to avoid that the lock tongue enter into the key hole because of spring rusting on driving.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句