[ 第三人称单数 prevents 现在分词 preventing 过去式 prevented 过去分词 prevented ]
It is important to prevent and treat HIV infection effectively.
因此，有效地预防和治疗艾滋病已成为当务之急。
参考来源 - HIVObjective To prevent the incidence of postpartum hemorrhage.
目的 探讨安全有效的防治产后出血方法,降低产后出血的发生率。
参考来源 - 米索前列醇预防产后出血的临床观察—《中国健康月刊·B版》—2010年第10期—龙源期刊网Security systems can prevent credit risks (default risks).
担保制度有助于防范住房抵押贷款的信用风险。
参考来源 - 商业银行个人住房抵押贷款风险防范Whether we could and how to prevent and cure the deflation?
能否和如何防治通货紧缩？
参考来源 - 中国通货紧缩的形成研究Therefore, criminal coercive disposition is a two-edged sword in some sense, and it should be brought into the track based on the rule of law in order to prevent its abuse.
因此,刑事强制处分在某种意义上可谓是一把双刃剑,必须将其纳入法治的轨道,以防控其滥用。
参考来源 - 权力制衡与权利保障视野下的刑事强制处分（研究生论文）The methods to prevent the relative risk in virtual enterprise are expounded.
论述了防范和规避虚拟企业中关系风险的主要方法。
参考来源 - 虚拟企业建立及运行的理论和方法研究Can we prevent it and warn against it?
对它的爆发能否预防和预警？
参考来源 - 论金融危机的生成与防范The analysis result provides the technological support to prevent the same accident.
分析结果为防止类似事故的再次发生提供了技术依据。
参考来源 - 鼓风机转子叶轮失效分析 Failure Analysis of Blower WheelShould try one’s best to prevent more than 70C of high temperature from being dealt with for a long time in processing.11.
10.pH值4.05.0时，杜仲叶酶提取液中活性成分热稳定性较好，另外在加工中应尽量避免70℃以上高温长时间处理。
参考来源 - 杜仲叶活性成分的酶法提取及其体外抗氧化特性研究Conclusion: Although it can not prevent the final popularization of mandarin, dialect still has a wider survival space in the more and more unrestricted media circumstance.
结语部分，指出方言电视的勃兴并不能阻碍普通话的最终普及。 在越来越开放的媒体环境下，方言有着更加广阔的生存空间。
参考来源 - 方言电视现象研究·2,447,543篇论文数据，部分数据来源于NoteExpress
V-T To prevent something means to ensure that it does not happen. 预防
These methods prevent pregnancy.
这些方法预防怀孕。
Further treatment will prevent cancer from developing.
进一步治疗将预防癌症恶化。
prevention N-UNCOUNT 预防
...the prevention of heart disease.
…心脏病的预防。
V-T To prevent someone from doing something means to make it impossible for them to do it. 阻止
He said this would prevent companies from creating new jobs.
他说这将阻止各公司创造新的职位。
Its nationals may be prevented from leaving the country.
其公民可能会被阻止离开该国。
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