alarm clock
短语
A2
闹钟
发音
US
词形变化
alarm clocks
复数
alarm clocks
别名
alarmclock
alarum clock
释义与例句
n.
A2
-
1.
A clock designed to sound an alert at a preset time, primarily to wake someone from sleep.
闹钟
闹钟仔
乱钟
乱钟仔
叫钟