fool proof

同根派生

The scheme seemed fool proof,but there was a snake in the grass that hadn't been reckoned with.
這個計策似乎很安全，便忽略了一項潛在的危險。
But, since the herpes virus does not always show its symptoms, prevention is not fool proof.
但是,由於皰疹病毒竝不縂是表現出症狀,預防不是笨蛋証明。
The scheme seemed fool proof, but there was a snake in the grass that hadn't been reckoned with.
這個計策似乎很安全，便忽略了一項潛在的危險。
Consideration of the Fool Proof Design for Instrumentation
關於儀器儀表防誤設計的思考
There is positive proof that he did it.
有確切的証據証明他做了此事。