从根本上来说，它(压力)是人体表达忧虑和担心的方式。
Basically, it (stress) is the body's way of showing anxiety or worry.
美国的学者也曾对美国一些学校教导类似的理论表达忧虑，其中包括“智慧设计论”。
Academics in the US have voiced concern over similar theories being taught in American schools, including one known as "intelligent design".
Dropbox修复了错误并在博客中承认了该问题，不过Dropbox是在有用户发现问题并表达忧虑后才采取的行动。
The company fixed the problem and admitted the flaw in a blog post, but not before some users caught on, expressing concern.
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