foolproof verification完善的核查
Asked Foolproof要求万无一失
foolproof circuit防止误操作电路
foolproof device保险装置
Foolproof Plan简单计划
foolproof f容易懂的
foolproof system万全办法
foolproof design极安全设计
foolproof interconnection防止错误操作的互连接法
ADJ（形容词） Something such as a plan or a machine that is foolproof is so well designed, easy to understand, or easy to use that it cannot go wrong or be used wrongly. 不出问题的; 不会弄错的
The system is not 100 per cent foolproof.
该系统不是百分之百不出毛病的。