fall-back

基本解释

Note that the different fall-back scenarios are only used in emulated mode.
注意不同的退廻場景僅被用於模擬模式。
If the Grace Period Extension applies, the fall-back is that the Grace Period will be no more than 30 calendar days.
如果寬限期延長適用，後備是，寬限期將不超過30個日歷天。
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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.
這意味著離開了原來的領域，然而,對於盡琯市場不好而仍想做物理學家的一意孤行的頑固分子，我認爲你有必要計劃"退一步"的工作-即後路，以支付你做你自己個人研究的帳單（比如兼職從事編程）。

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.
但是我認爲,這些形式主義者們在不自覺中，對於形式和內容的雙重性,太過偏執。
耶魯公開課 - 文學理論導論課程節選

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