backwardsBrE /ˈbækwədz/ NAmE /-wərdz/► SEE ALLbend/lean over backwards to do sthback and forthknow sb/sth backwards ●bend/lean over ˈbackwards to do sthtry very hard to help or please sb尽力做某事；竭力做某事◆I’ve bent over backwards to be nice to her, but she’s pushed me too far now. 我尽力去讨好她，可是她现在却欺人太甚。●ˌback and ˈforth ( ˌbackwards and ˈforwards) in one direction and then in the opposite one, repeatedly来回；反复◆The rope swung back and forth from the branch.绳子在树枝上来回摇晃。◆She travels backwards and forwards between the factory and head office.她在工厂和总部之间来回奔波。●know sb/sth ˈbackwards (informal, especially BrE) know sb/sth extremely well对…了如指掌（或倒背如流）；把…背得滚瓜烂熟◆He must know the play backwards by now — he’s seen it six times!现在他一定能对这个剧本烂熟于心，他已经看过六遍了！