coca 1-20200 english word,Image and sound

Flex 12688.Flex 英 Fleks]美 Flɛks 释义 Vt 折曲；使收缩vi

正面	12688.flex 英 [fleks]美 [flɛks]
背面	释义： vt. 折曲；使收缩vi. 弯曲；收缩n. 屈曲；电线；松紧带adj. 弹性工作制的n. (Flex)人名；(意)弗莱克斯；(法)弗莱 例句： 1. I was required to hold out my arms and flex my pectorals.我被要求伸展手臂，收紧胸肌。 1. howl <====> growl. flex 屈伸来自flexible的回构词。 flex (v.)1520s, "to bend," usually of muscles, probably a back-formation from flexible. Related: Flexed; flexing."

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