We all try to speak up whenever we can, whether it's at official functions or just when we hear something is wrong.

我们都尽量发出声音，无论是在正式演讲场合还是遇到错误观点时。

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Even if you can't speak or read Chinese you have to try. If you don't try, you can easily end up at the wrong stop.

哪怕你不懂中文，你也应该试着去说，不然的话，就有可能下错站。

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We might try to speak or write a different language and end up embarrassing ourselves.

我们可以试着用别的一种语言措辞、写字，最终自寻难过。

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You can't build your convention and much of your campaign around your service in Vietnam, and then try to say that only those veterans who agree with you have a right to speak up.

CNN: Text of veterans' letter to Sen. John Kerry

For example, when defense lawyers try to portray some of these conference calls with analysts as innocent, Koenig will speak up and say why he thinks these calls were, in fact, so misleading that they were criminal.

NPR: Witness: Enron Executives Knew of Inflated Earnings