fastener
扣件,鈕扣,結紮工
Fas·ten·er n. One who, or that which, makes fast or firm.
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fastener
n 1: a person who fastens or makes fast; "he found the door
fastened and wondered who the fastener was"
2: restraint that attaches to something or holds something in
place [syn: fastening, holdfast, fixing]