英语释义
1
n fear resulting from the awareness of danger
2
n a device that signals the occurrence of some undesirable event
3
n an automatic signal (usually a sound) warning of danger
4
n a clock that wakes a sleeper at some preset time
5
v fill with apprehension or alarm; cause to be unpleasantly surprised
6
v warn or arouse to a sense of danger or call to a state of preparedness