ensure ♦︎ make sure ♦︎ guarantee ♦︎ assure ♦︎ see to it that...These words all mean to make sth certain to happen.这些词均表示保证、确保。PATTERNS AND COLLOCATIONS 句型和搭配◆to ensure / make sure / guarantee / see to it that...◆to ensure / guarantee / assure the success / survival / quality of sth◆to absolutely ensure / guarantee / assure sth◆to make absolutely sure◆to virtually ensure / guarantee / assure sth■ensure ( insure, especially in NAmE) / /ɪnˈʃʊə(r), ɪnˈʃɔː(r); NAmEɪnˈʃʊr/ [transitive, intransitive] (ratherformal) to make sth certain to happen; to check that sth is done保证；确保；务使◆The book ensured his success.这本书使他笃定会成功。◆Please ensure that all lights are switched off.请务必将所有的灯关掉。■make ˈsure
idiom
(made, made)to do sth in order to be certain that sth else happens确保；设法保证◆Make sure (that) no one else finds out about this.绝对不能让任何人发现这件事。◆They scored another goal and made sure of victory.他们又进了一个球，这就赢定了。■guarantee /ˌgærənˈtiː/ / [transitive] to make sth certain to happen保证；确保◆Tonight's victory guarantees the team's place in the final.今晚的胜利确保了这个队能进入决赛。◆These days getting a degree doesn't guarantee you a job.如今获得学位并不保证你能找到工作。■assure /əˈʃʊə(r), əˈʃɔː(r); NAmEəˈʃʊr/ [transitive] to make sth certain to happen保证；确保◆Victory would assure a place in the finals.赢得比赛将确保能进入决赛。◆This achievement has assured her a place in the history books.这一成就确定了她将在史册中留名。NOTE辨析 Ensure, guarantee or assure?Ensure is often used in orders or instructions. * ensure常用于命令或指示◆Please guarantee/assure that all lights are switched off.Assure and guarantee can suggest that feelings of worry or doubt about sth are removed; guarantee, but notassure is often used in negative statements to show that feelings of worry or doubt are not removed. * assure和guarantee可用来表示排除担心或疑虑。guarantee常用于否定句，表示没有排除担心或疑虑，assure则不这样用◆Getting a degree doesn't assure you a job.■ˈsee to it that...
phrasal verb
(saw, seen)to give your attention to sth in order to make sure that it is done确保；务使◆Can you see to it that the fax goes this afternoon?你务必今天下午就把传真发出去，好吗？