fastest
词形变化：
名词: fastener | 动词过去式: fastened | 动词过去分词: fastened | 动词现在分词: fastening | 动词第三人称单数: fastens |
同义词：
tie | secure | attach | lock | fix | chain | clasp | shut | join | clip | affix | close | bind | tie up | do up | connect | button up | zip | zip up | hitch | tether | solder | tighten | pin | rope | clinch | wire | stick | nail | lace | tack | cord | screw | strap | tape | button | cinch | knit | cement | glue | hinge | buckle | anchor | grip | hook | staple | seal | clamp | moor | bond |
反义词：