friction
n. 不和，分歧；摩擦；摩擦力
复数 frictions
例句
The pistons are graphite-coated to reduce friction.
活塞表面涂有石墨以减少摩擦。
《柯林斯英汉双解大词典》
Sara sensed that there had been friction between her children.
萨拉感觉到她的孩子们中间出现了摩擦。
Friction between moving parts had caused the engine to overheat.
活动部件的摩擦使发动机过热。
《牛津词典》
