这种被广泛使用的塑料通常含有一些有害的化学物质，包括一些已知的致癌物质，像氯乙烯、“戴奥辛”、邻苯二甲酸类物质，它们都和哮喘、过敏症和生殖问题息息相关。
This widely used plastic often contains harmful chemicals, including such known carcinogens as vinyl chloride, dioxin, and phthalates, which are linked to asthma, allergies, and reproductive problems.
在Release Notes中你还会找到更多关于哪些内容包含在这一平台预览发布中的信息，其中包括了已知的和已解决的问题。
You'll also find more information on what's included in this release of the Platform Preview in the release Notes, including known and resolved issues.
问题是，多数网络安全侵入——包括国家发动的侵入——利用的是已知的漏洞，比如针对漏洞的补丁尚未开发或应用。
The trouble is that most cyber security breaches — including those by nations — exploit known vulnerabilities, such as where a patch was either not developed or deployed.
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