一张强大的关系网可使你获得可信的建议，可使你的职业信息保持畅通，让你有机会找到工作，还可以支持别人的职业生涯。
A strong network allows you to get advice from trusted sources, to keep your professional knowledge current, to find career opportunities, and to support the careers of others.
不管是一张图片、一个视频还是一个音乐文件，在作品所到之处都要放上有关作品的许可信息。
Whether it's a photo, a video, or a music file, it's important that information about the license goes where the work goes.
在一张数字证书的生命期中，正在签发的CA可能会决定该证书不再可信。
During the lifetime of a digital certificate, the issuing ca might determine that the certificate is no longer to be trusted.
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