fall back to

基本解釋

Also, if the upgrade reacts negatively in production, you can quickly fall back to the other cell, significantly reducing recovery time.
而且，如果更新在生產(chǎn)中產(chǎn)生負面效果，您可以迅速切換到另一個單元，極大地減少恢復(fù)時間。
For functions and constants, if the current namespace does not contain that function or constant, PHP's fallback mechanism will fall back to the standard PHP function.
對于函數(shù)和常量，如果當前的名稱空間不包含這個函數(shù)或常量，PHP 的后退機制會后退到標準的 PHP 函數(shù)。
As the heat diminishes, radioactive materials that have vaporized condense on the particles and fall back to Earth.
當核爆的熱量減少，被蒸發(fā)放射性物質(zhì)會濃縮到這些顆粒中，然后落到地面。

An order came for him to fall back and support our right.
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.
但是我認為,這些形式主義者們在不自覺中，對于形式和內(nèi)容的雙重性,太過偏執(zhí)。
耶魯公開課 - 文學(xué)理論導(dǎo)論課程節(jié)選
Of course, you can imagine the thoughts of Louis XVI as they were cutting back his hair to await the fall of the guillotine on the 21st of January, 1793.
你可以想象下在1793年1月21日這天,當人們拽住路易十六的頭發(fā),等待斷頭臺下落時他會想些什么
耶魯公開課 - 歐洲文明課程節(jié)選

They were over achievers and, all things being equal, will fall back to earth in 2012.
FORBES: MLB 2012: Bill James's Slick, Simple Stat Picks the Baseball Season's Winners and Losers