fool·proof /ˈfulˌpruf/
(a.)十分簡單明瞭的;十分安全的,極堅固的,有防備的
foolproof
adj : not liable to failure; "a foolproof identification system";
"the unfailing sign of an amateur"; "an unfailing test"
[syn: unfailing]
v : proof against human misuse, error, etc.; "Foolproof this
appliance" [syn: goofproof, goof-proof]