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(Mr. Ng 不推薦使用 Google 翻譯!)
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BNC: 21607 COCA: 18375

(of a plan or machine) so simple and easy to understand that it is unable to go wrong or be used wrongly(计划或机器)连傻子都懂的,操作简便的,万无一失的

I don't believe there's any such thing as a foolproof system for making money.我认为不存在任何万无一失的赚钱方法。
This new DVD player is supposed to be foolproof.这台新的光盘播放机应该是傻瓜型的。

👨🏻‍🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net
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