flex /ˈflɛks/
  (vt.)彎曲,伸縮,折曲(vi.)彎曲電線,鬆緊帶
  flex /ˈflɛks/ 及物動詞
  屈曲,曲
  Flex v. t. [imp. & p. p. Flexed p. pr. & vb. n. Flexing.]  To bend; as, to flex the arm.
  flex
       n : the act of flexing; "he gave his biceps a flex to impress
           the ladies"
       v 1: contract; "flex a muscle"
       2: exhibit the strength of; "The victorious army flexes its
          invincibility"
       3: form a curve; "The stick does not bend" [syn: bend] [ant:
          straighten]
       4: bend a joint; "flex your wrists"; "bend your knees" [syn: bend]
       5: cause (a plastic object) to assume a crooked or angular
          form; "bend the rod"; "twist the dough into a braid"; "the
          strong man could turn an iron bar" [syn: bend, deform,
           twist, turn] [ant: unbend]