tighten和strengthen区别？

tighten和strengthen区别？

tighten和strengthen区别？

tighten和strengthen区别为tighten释义：vt. 变紧；使变紧vi. 绷紧；变紧例句：The athlete tightened his shoelaces before running.运动员跑步前把鞋带系紧。词组：tighten up加强；使紧密；拉紧；使更牢固tighten one's belt节约度日；束紧腰带strengthen释义：vt. 加强；巩固vi. 变强；变坚挺例句：Instead, repeated setbacks strengthened his will.反复的挫折反而加强了他的意志。词组：strengthen environmental protection加强环境保护strengthen the awareness提高意识；强化意识strengthen unity加强团结strengthen discipline加强纪律