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fail-safe
[feil'seif]
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GRE
1.ADJ 形容词 有自动保险装置的;具有自动防故障性能的 Something that is fail-safe is designed or made in such a way that nothing dangerous can happen if a part of it goes wrong.
【搭配模式】：usu ADJ n
The camera has a built-in failsafe device which prevents it from working if the right signals aren't received.照相机有内置自动防故障装置，该装置确保相机在未接到正确信号时不会启动。
adjective
very unlikely to fail 万无一失的，万全的 a fail-safe plan 万无一失的计划
If something is fail-safe, it has been designed so that if one part of it does not work, the whole thing does not become dangerous 可自动防止故障危害的；有自动保险装置的 a fail-safe device 故障保护装置