beat

心跳(声), 打, 敲打声, 拍子

a regular route for a sentry or policeman; a single pulsation of an oscillation produced by adding two waves of different frequencies; has a frequency equal to the difference between the two oscillations; the sound of stroke or blow; a regular rate of repetition

打, 拍打, 打败

疲乏的, 颓废的

beat的过去式

殴打