1wrench sb/sth (away, off, etc) to pull or turn sb/sth strongly and suddenly 猛地一拉或扭: They had to wrench the door off the car to get the driver out.他们得使劲儿把车门拉掉，让司机出来。 (figurative 比喻)The film was so exciting that I could hardly wrench myself away.影片太精彩了，我给牢牢吸引住，不想走开。
2 to injure part of your body by turning it suddenly 扭伤（身体某部位）
wrench²
/rentʃ ||; rɛntʃ/noun
1 [C] a sudden, violent pull or turn 猛然的一拉或扭: With a wrench I managed to open the door.我使劲儿一拉，把门打开了。
2 [sing] the sadness you feel because you have to leave sb/sth 惜别之情
3 [C] (especially US 尤为美) =SPANNER☞Look also at monkey wrench and adjustable spanner. 另参看monkey wrench及adjustable spanner。