去年11月，丰田为了消除潜在的汽车会突然加速的危险，发布安全通告召回美国四百二十万辆轿车。
Last November, Toyota issued a safety recall affecting 4.2m American vehicles that were also potentially subject to sudden acceleration.
美国食品药品监督管理局(FDA)于今日发布了上述安全通告，并提醒医护人员，新旧两种肝素制剂将会同时存在一段时间。
The Food and Drug Administration (FDA) issued the safety communication today and is warning healthcare professionals that both the old and new formulations of heparin will be available for some time.
昨天，《卫报》发出一份关于其招聘网站的安全通告。 通告说：“网站运营商已经确定黑客入侵的方式，并且已经采取措施阻止此类事件再次发生。”
Yesterday , the Guardian put a security notice on its Jobs site, which said: "The supplier who runs the site has identified the manner in which it was hacked and taken steps to prevent a recurrence."
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