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n.紧固件；钮扣；钮扣；使系牢之物 变形： 复数：fasteners 英英释义： fastener[ 'fɑ:sənə ]n.a person who fastens or makes fast"he found the door fastened and wondered who the fastener was"restraint that attaches to something or holds something in place同义词：fasteningholdfastfixing
