within living memory idiom
记忆犹新，依然留在记忆中
If something has happened within living memory, it can be remembered by some people who are still alive.
There is possibly less chance of another world war while the last one is within living memory. 当人们对上一次世界大战还记忆犹新的时候，爆发新的世界大战的可能性会很小。