n.支持；支持者；背衬；（独唱或独奏的）伴奏v.（使）后退，（使）倒退( back的现在分词)；支持；作…的衬里；（用证据或理论来）证实（一种理论或主张） 变形： 复数：backings 英英释义： backing[ 'bækiŋ ]n.the act of providing approval and support"his vigorous backing of the conservatives got him in trouble with progressives"同义词：backupchamp