词汇	a merciless blow
释义	a merciless blow 无情的打击
随便看	back-ward backward a backward acceleration backward acknowledgement backward acknowledgement information backward acting backward-acting backward acting decoder backward-acting decoder backward-acting, forward acting-regulation backward acting regulator backward-acting regulator backward action backward-action regulator backward adaptive prediction backward adaptive predictionapb backward adaptive quantization backward adaptive quantizationaqb Backward Advantage backward aerofoil blade backward algorithm backward analysis backward and bidirectional backward chaining control backward chaining manner