foolproof基本解释

adj,十分简单的；十分安全的；不会错的,同近

The system is not 100 per cent foolproof..该系统不是百分之百不出毛病的。

十分简单的；十分安全的；不会错的英释中释adjSomething 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