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1.cyber attack 网络攻击
例句：He also warned more would need to be done to protect the UK's core infrastructure from cyber attack.
他还警告说，要防止英国的核心基础设施遭到来自网络的攻击，他们还有更多的事情要做。
2.search engine 搜索引擎
例句：Do you want the search engine to see every page on your website?
你是否希望搜索引擎能看到你网站上的每一页面？
