下降: descend; go or come down; dr ...动作: movement; motion; action升降动作: rise and fall升降动作筒: elevator actuating cylinder水上迫降动作程序图: ditching chart下降: descend; go or come down; drop; fall; decrease (in); decline; fall off; droop; downgrade 逐渐下降 decrease by degrees; 生产[体重] 下降 decrease in production [weight]; 引起下降 bring about its decline; 持续下降 steady decline; 下降到次要位置[地位] be relegated to a secondary position; 出生率下降 a decline in the birth rate; the birthrate is on the decline. 价格下降。 the prices are declining. 飞机正在下降。 the plane was descending. 气温显著下降。 there was a marked drop in temperature. 生产成本逐年下降。 production costs come down every year. 销售量下降了。 sales have dropped off肩胛降动脉: arteriae scapularis descendens颈深降动脉: dedescending cervical artery前降动脉: anterior descending artery膝降动脉: arteria genus descendens; descending genicular artery腭降动脉: arteria palatina descendens; arteriae palatina descendens; descending palatine artery动作: 1.(全身或身体的一部分的活动) movement; motion; action 动作缓慢 slow in one's movement; 优美的舞蹈动作 graceful dance movement; 仔细瞧我的动作! watch my motion carefully.2.(活动; 行动起来) act; start moving 仔细想过后再动作。 think it over carefully before you act. 且看他下一步如何动作。 let's see how he acts next.3.(机动行为; 操作) manoeuvre; actuation; action; motion; act; locomotion; event; agency; activity; operation; behaviour 飞机的一种特技动作 an acrobatic manoeuvre of the plane卷纱长度；升降动程: lift膝降动脉关节支: rami articulares arteriae descendentis genicularis沉积，下降: absenkung倒塌，下降: come down掉下，下降: fall down跌落，下降: fall off放慢，下降: slow down急下降: drop-off减少；下降: decline v. decrease； move from a better to worse position降低；下降: abase净下降: net decline使下降: bring down; dip v下垂, 下降: descensus
