名詞 flex:

1. the act of flexing

動詞 flex:

1. contract
2. exhibit the strength of
3. form a curve
   同義詞：bend
4. bend a joint
   同義詞：bend
5. cause (a plastic object) to assume a crooked or angular form
   同義詞：bend, deform, twist, turn

1. The gardeners flexed their muscles and began to dig.
   園丁們舒腰展臂后才開始挖地。
2. Capable of being bent or flexed; pliable.
   柔軟的可彎曲或扭曲的; 柔韌的

flex

v.（動詞）
flexed,flex.ing,flex.es
v.tr.（及物動詞）
To bend (something pliant or elastic).
使（柔韌的或有彈性的東西）彎曲

To bend (a joint).
屈曲（關節(jié)）
To bend (a joint) repeatedly.
反復屈曲（關節(jié)）

To contract (a muscle, for example).
收縮（如肌肉）
To move by muscular control:
通過肌肉調節(jié)而運動：
例句：
.Sandy flexes his brow characteristically, one of those Latin gestures reflecting something too delicate or imprecise to say.(Scott Turow)
.山迪頗具特色地皺了皺眉頭，這是一種拉丁人對微妙說不清的事情的暗示.(斯科特·圖羅)

To exhibit or show off the strength of:
顯示或炫耀…的力量：
例句：
.They had spent six years since the lightning Six Day War flexing their invincibility.(Howard Kaplan)
.自從那次顯示他們戰(zhàn)無不勝的閃電似的六日戰(zhàn)以來已有六年了.(霍華德·卡普蘭)

v.intr.（不及物動詞）
To bend:
彎曲：
例句：
.His hands flexed nervously as he spoke.(Mary McCarthy)
.他說話時手緊張地攥著.(瑪麗·麥卡錫)

n.（名詞）
Chiefly British Flexible insulated electric cord.
【多用于英國】 花線，皮線：軟的絕緣電線
The act or an instance of flexing; a bending.
彎曲：彎曲的行為或實例；彎曲
Pliancy; flexibility:
柔韌性；彈性：
例句：
.‘Resolution’ has none of that modern flex we favor, with generous, built-in amounts of ‘maybe’.(Melvin Maddocks)
.‘果斷’沒有我們所推崇的現(xiàn)代彈性的意味，即說一大堆暗含‘也許’的話.(梅爾文·馬多克斯)

<習慣用語>flex (one`s) muscles【非正式用語】
To exhibit or show off one`s strength.
顯示或炫耀（某人的）力量
來源：
Latin flectere flex- [to bend]
拉丁語 flectere flex- [彎曲]