guarantee against

基本解释

The only guarantee against contracting HIV is to totally avoid high-risk activities.
唯一能保证预防感染人体免疫缺损病毒（HIV）的行为就是完全避免高风险的性行为。
They buy home loans from lenders, package them into bonds with a guarantee against default and sell them to investors.
“两房”从贷款商处购买住房贷款，将其转成债券再出售给投资商，同时还提供担保服务。
The banks will hope they have secured a guarantee against more intrusive meddling by getting the government to make a broad statement about the industry’s economic importance.
银行将会希望它们得到一个保证，通过使政府做出对产业的经济上的重要性做进一步的陈述来防止强制干涉。

Some investors view the investigation as a guarantee against fraud while others view it as a paid-for whitewash.
FORBES: Silvercorp Back in Focus
And at least the discipline of the election circus provides some guarantee against a successful candidate's economic profligacy, dictatorial impulses or sheer incompetence.
ECONOMIST: Even flawed democracy serves better than no democracy
Similarly, DLP is no guarantee against leaks: because it cannot tell what is in encrypted files, data can be wrapped up and smuggled out.
ECONOMIST: Companies and information