declining years n. 垂暮之年；老年declining distinctiveness [商業(yè)]衰退的特色declining adj. 下滑的；衰退的；傾斜的 v. 下降；衰退；婉謝（decline的ing形式）declines v.下降；減少；變?nèi)?；拒絕；傾斜n.衰微；跌落；晚年decliner v.下降；減少；變?nèi)?；拒絕；傾斜n.衰微；跌落；晚年declined-belt 消落帶declined v.下降；減少；變?nèi)酰痪芙^；傾斜n.衰微；跌落；晚年decline to comment 不置可否decline stage of plc [交通運輸工程]產(chǎn)品生命周期的衰退期[商業(yè)]產(chǎn)品生命周期的衰退期decline stage 衰退期；下降階段decline or rejuvenation stage [商業(yè)]衰落或復(fù)興階段decline in family financial situation 家道衰微decline in economic usefulness 經(jīng)濟效用降低decline factor [能源科學技術(shù)]遞減系數(shù)decline draft 拒付decline curve 下降曲線 遞減曲線decline and fall 衰亡decline (v.) decline (in) price decline n.下降vt.& vi.辭謝，謝絕（邀請等）vi.（道路、物體等）下傾vt.謝絕，婉拒