大船通常能够驶出大浪，但是小船可能就必须要采取防御措施来 防止翻船或 损坏。

The large ones can usually ride out the biggest storms, but smaller ones may have to take avoiding action to prevent loss or damage.

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Tomcat 7还针对会话固定攻击(session fixation attack)采取了一些防御措施。

Preventative measures have also been taken to protect against session fixation attacks.

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他们感到不安，似乎他们也应采取特别的防御措施，但防御什么，他们不知道。

They felt uneasy, as if they too should be taking special precautions but against what, they had no idea.

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