So what's the definition of a "good strong" password?

那么所谓“优良强壮”的密码的定义如何呢？

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A strict password policy might be put in effect that requires users to select a strong password and change it on a frequent basis.

又如，可以实行严格的密码策略，要求用户选择一个强密码，并经常更换密码。

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The combination of your name and a strong password provide sufficient corroboration.

将您的用户名和强密码组合在一起，这样可以提供足够的安全性加强。

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However the company offers tips for all of its users going forward, including using strong passwords that mix numbers and symbols with upper- and lowercase letters, not using the same password for multiple accounts, and disabling Java.

CNN: Twitter hacked; 250,000 accounts affected