fallback
n. 可依靠的东西, 退却 [计] 撤退
发音
词形变化
别名
释义与例句
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1.
An act of falling back.
可数 不可数A failure of one of the rocket's first-stage engines just after liftoff would result in a destructive pad fallback.
The black hole formed as a result of fallback of ejecta onto the neutron star initially created by the supernova explosion.
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2.
A backup plan or contingency strategy; an alternative which can be used if something goes wrong with the main plan; a recourse.
递补
可数 不可数As a fallback, I suppose we can use typewriters if the word processing system fails.
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3.
A reduction in bitumen softening point, sometimes called refluxing or overheating, in a relatively closed container.
可数 不可数 商务 建筑 工程 -
4.
Pulverised material that falls back to earth after a nuclear explosion; fallout.
可数 不可数
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1.
Misspelling of fall back.
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1.
That can be resorted to as a fallback.
a fallback plan
词汇关系
词源
From the verb fall back.
来源：wiktionary