fall-back

基本解释

Note that the different fall-back scenarios are only used in emulated mode.
注意不同的退回场景仅被用于模拟模式。
If the Grace Period Extension applies, the fall-back is that the Grace Period will be no more than 30 calendar days.
如果宽限期延长适用，后备是，宽限期将不超过30个日历天。
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However, for the diehards who wish to do physics in spite of a bad job market, you may plan to have a “fall-back” job to pay the bills (e.g. programming) while you conduct research on your own time.
这意味着离开了原来的领域，然而,对于尽管市场不好而仍想做物理学家的一意孤行的顽固分子，我认为你有必要计划"退一步"的工作-即后路，以支付你做你自己个人研究的帐单（比如兼职从事编程）。

At the end of July, the roommates said goodbye, as they started summer recess and headed back to their home states to gear up for the fall re-election campaign.
Well, I actually think the Russian formalists can be defended against the charge that, unbeknownst to themselves, they fall back in to form-content distinctions by insisting on this variety of dualities.
但是我认为,这些形式主义者们在不自觉中，对于形式和内容的双重性,太过偏执。
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At the very least, small-scale and low-tech gemstone-mining could be a fall-back for the country's beleaguered herders.
ECONOMIST: Somaliland
Republicans are drawing up a fall-back strategy to avoid the fiscal cliff if talks with Democrats fall apart.
FORBES: Boehner's Plan B For The Fiscal Cliff Met By Market Rally