单词Yale lock
n.: 耶鲁锁（常装于房屋大门，钥匙呈扁平锯齿状）网络: 耶尔锁；美国耶鲁锁业
耶鲁锁（常装于房屋大门，钥匙呈扁平锯齿状）:
a type of lock that is often fitted in the front door of a house and which opens by using a flat key with a series of pointed edges