fail-safe (adj.)是什么意思，fail-safe (adj.)的翻译，fail-safe (adj.)音标、读音、用法和例句

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fail-safe (adj.)是什么意思，fail-safe (adj.)的翻译，fail-safe (adj.)音标、读音、用法和例句_乐豆毛深蓝词典

fail-safe (adj.)

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