预防有1.defend 2.guard against 3.prevent1.defend 防御, 防守, 保卫(国家等)以行动, 语言或文字替...辩护或答辩defend the motherland 保卫祖国The accused man had a lawyer to defend him. 被告有一律师为他辩护。习惯用语defend against 保卫; 抵抗defend from 保护, 保卫(使不受伤害)参考词汇defend guard protect shield preserve 都含“保护”、“使安全”的意思。defend指“保卫”、“防御”, 应用范围很广, 对象可以是具体的, 也可以是抽象的, 如:defend oneself against enemy 防御敌人。guard 指“注意观察、戒备, 以免受可能的攻击或伤害”, 如:guard a coastline 守卫海岸线。protect 指“保护...以免遭受危险或伤害等”, 如:protect the children from harm 保护儿童免受伤害。shield 指“保护、保卫...免受惩罚或伤害等”, 如:shield one's eyes against the glare of the sun 保护眼睛不受强烈的阳光伤害。preserve 指“防护、保存...免被分解或腐烂”, 如:Salt preserves food from decay. 盐能防止食物腐烂。2.guard against 提防, 预防3.preventvt.防止, 预防阻止[挡], 制止; 妨碍(from)[古]领先; 先做; 预先应付(问题)【宗】引领prevent diseases 预防疾病What [Who] prevented him from going [prevented his going, prevented him going]? 什么事[谁]阻止了他去?习惯用语prevent...from 使...不做某事, 阻止...做某事参考词汇prevent forestall preclude 都含“阻止”的意思。prevent 指“采取预先行动或用障碍物使不发生或停止”, 如:prevent diseases 预防疾病。forestall 指“先采取行动以阻止别人做某事”、“先发制人”, 如:Try to forestall their questions. 尽量不让他们问问题(作到先发制人)。preclude 指“阻止某人做某事”、“使不可能发生某事”, 如:The bad weather precluded me from attending the meeting. 恶劣的天气使我不能出席会议
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