相关单词近义词 flexor muscle 屈肌反义词extensor, 伸肌临近词flex, flexiback, flex hook, Flexazone, flex time, flexamine, Flexichoc, flex wing, flexitime, flex test, flexifeed相似词flexion, flexitarian, flexitime, flexography, flexure, flibbertigibbet, flick, flick factor, 返回 flexor