你必须充分考虑到预料不到的情况。
You must make a liberal allowance for unforeseen circumstances.
充分考虑可能的错误，将你的系统设计的比需要更安全，那么当意想不到的事情发生是，你就不会措手不及。
Give yourself a margin for error. Give yourself more security than you need today. When the unexpected happens, you'll be glad you did.
充分考虑可能的错误，将你的系统设计的比需要更安全，那么当意想不到的事情发生是，你就不会措手不及。
Give yourself a margin for error. Give yourself more security than you need today. When the unexpected happens, you'll be glad you did.
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