自由的红枫叶
guarantee 英 [ˌgærənˈti:] 美 [ˌɡærənˈti]n.保证，担保;保证人，保证书;抵押品vt.保证，担保例句：Most states guarantee the right to free and adequate education大多数州都保障人们免费享受充分教育的权利。There is still no guarantee that a formula could be found.还没有把握是否能找到一个配方。
左边iori
保证 [ bǎo zhèng ] . . guarantee . 近义词或词组 guaranty | engage for | sponsion | warranty | warrant | ensure | surety | swear for | vouch | secure | assure | assurance | vouch for | avouch for | answer for | give one's word
英子888888
单从“确保”的意思来讲，建议使用ensure,make sure.如因语境不同需要有不同的表达，此处给出一些相关的词性解释，希望对你有所帮助。ensure确定，确保： 1.The book ensured his success.那本书确定了他的地位 2.These pills could ensure you a good night\'s sleep.这些药丸可 以确保你睡一宿好觉。 3.ensure product quality 确保产品质量guarantee保证，担保,承诺对某事负法律责任： 1.I can guarantee it\'s true. 我保证那是真的。 2.guarantee to pay debts. 保证还债。assure 明确或有信心的告诉某人，保证某事： 1.I assure you he will be safe with us. 我保证他和我们在一起 会完全的。 2.assure sb/oneself of sth. 使某人自己对某物确信不疑。 She was able to assure herself that nothing had been taken from her purse.她确信钱包里什么东西都没有被拿去。certify强调书面证明某事物。warrant证明某物正当有理，保证某物为真品正品: This material is warranted to be pure silk.这种料子保证是纯丝的。
mono默默
保证 = guarantee例如 ： 这是我们取得成功最可靠的保证。This is the surest guarantee that we shall be successful
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