一旦一周的学习计划定下来，每周都按同一个模式去做或稍加改动。
Once a weekly study plan is prepared, follow the same pattern every week with small changes.
一旦你得到这些数据，你需要有个差额——要么节食要么锻炼——每天大概500热量，这样一周可以减掉一磅。
Once you have that number, you need to create a deficit — either by dieting or exercise — of approximately 500 calories per day to lose a pound a week.
鉴于2003年发生的哥伦比亚事件的惨剧仍记忆犹新，NASA预备了奋进号航天飞机作为后援，一周内一旦亚特兰蒂斯号发生任何危险，奋进号将立刻进行救援。
With the 2003 Columbia tragedy in mind, NASA will have the shuttle Endeavour prepared to rescue the Atlantis crew from space on a week's notice should any mishaps occur.
经常运动可能无法在第一周或数月后，中风，但你应该能够开始恢复行使一旦你取得了进展。
Regular exercise may be impossible in the first weeks or months following a stroke, but you should be able to begin exercising once your rehabilitation has progressed.
人们花费收入的一小部分用于家庭保险，并不是因为担心自己的住所在一周以内付之一炬，而是因为一旦火灾发生将损失惨重。
They spend a little of their incomes on household insurance not because they think their homes are likely to be torched next week but because, if it happened, the results would be disastrous.
一旦达到限定时间，检测仪器会自动关闭电视，并且直到下一周电视才允许被打开。
Once the limit was reached, a monitor automatically shut the TV off and would not allow it to be turned on again until the next week.
鉴于2003年发生的哥伦比亚事件的惨剧仍记忆犹新，NASA预备了奋进号航天飞机作为后援，一周内一旦亚特兰蒂斯号发生任何危险，奋进号将立刻进行救援。
With the 2003 Columbia tragedy in mind, NASA will have the shuttle Endeavour prepared to rescue the Atlantis crew from space on a week 's notice should any mishaps occur.
一旦行为确立下来，可以一周只给一次食物奖励，但是他应该是在你每次叫他的时候都会过来。
Now once this behavior is established, the animal can be reinforced once a week, but will continue to come.
一旦行为确立下来，可以一周只给一次食物奖励，但是他应该是在你每次叫他的时候都会过来。
Now once this behavior is established, the animal can be reinforced once a week, but will continue to come.
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