推到幕后, 置于次要的地位

relegate to put in to the background relegate drive into the background keep in the background melt into the background push into the background stand in the background throw into the background remain in the background in the background target-to-background ratio lesion-to-background contrast recede into the background sample to background activity ratio background to go to the bad companion to the cycloid to the utmost to the world to the skies