【建】 collapsible drum
approve; but; can; may; need; yet
shrink; contract; draw back; pinch; constriction; constringency; shrinkage
【化】 shrinkage
【医】 contract; contraction; systole; Z.; zuckung
【经】 contraction
beat; blow with bellows; drum; rouse; strike; tambour
【医】 drum