1
- usu. in sing. a sudden violent twist or pull猛扭, （突然的）一扭, 一拧; 猛拉, 猛拽：
with a wrench Tony wriggled free.
猛地一扭, 托尼挣脱了。
1.1
- figurative an act of leaving someone or something that causes sadness or distress〈喻〉（离别等的）痛苦, 难受; 引起痛苦的离别：
it will be a real wrench to leave after eight years.
八年后要离开将是真真痛苦的事。
2
- an adjustable tool like a spanner, used for gripping and turning nuts or bolts（活动）扳手, 扳头, 扳钳, 搬子。
3
- Mechanics a combination of a couple with a force along its axis【机械】偶单力组。
with obj.
1- pull or twist (someone or something) suddenly and violently猛扭, 猛拧; 猛拉, 猛拽：
Casey grabbed the gun and wrenched it from my hand
凯西一把抓住了枪, 猛地一扭, 从我手中抢了过去
with obj. and complement she wrenched herself free of his grip她猛力从他紧抓的手中挣脱了
no obj. figurative 〈喻〉the betrayal wrenched at her heart.背叛使她心如刀绞。
1.1
- injure (a part of the body) as a result of a sudden twisting movement使扭伤：
she slipped and wrenched her ankle.
她滑倒扭伤了脚踝。
1.2
- turn (something, especially a nut or bolt) with a wrench用扳钳拧。
1.3
- archaic distort to fit a particular theory or interpretation〈古〉歪曲, 曲解：
to wrench our Bible to make it fit a misconception of facts.
曲解圣经以迎合对事实的错误看法。
词源
late Old English wrencan 'twist'， of unknown origin.