我们试图在进行较大更改后至少一周内对系统进行控制，但我们发现一周时间还不足以评估变更的影响。

We tried to control the systems for at least a week after a major change, but we discovered that a week really wasn't enough time to evaluate the impact of a change.

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从日本回来后一周时间，我们又被派到阿拉斯加去进行为期6个月的幸存训练。

After a week at home from Japan, we were sent to Alaska for six months for survival training.

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当你持续关注一件事的时候，事情经常会出现转机——有人或者突然间向你提及他（她）有你想要的东西，或者一两周后在互助网络或者Craigslist上看到它。

Often things will turn up when you keep your eyes open — someone will happen to mention they have the item, or you’ll see it on Freecycle or Craigslist after a week or two.

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