词汇	挣扎着上楼梯
释义	挣扎着上楼梯 struggle up the stairs挣扎
随便看	two-stage cascade system two-stage cassettes two-stage catalytic hydrogenate twostage catalytic hydrogenation two stage catalytic hydrogenation two-stage catalytic hydrogenation two-stage causticization processes two stage cementing two-stage cementing twostage centrifugal pump two stage centrifugal pump two-stage centrifugal pump two stage-charger valve two-stage chilling two-stage cleaning arrangement two-stage close circuits two-stage clustered randomized sampling two-stage coagulation two-stage coal gasification technology two stage column twostage combustion two stage combustion two-stage combustion two stage combustion engine two stage communication