to gather / to collect / to assemble

park

落ちる: to fall

understood!

to fall / (computing) to go down (as when a computer or application becomes unresponsive) / (electrical engineering, of a circuit breaker) to trip / (informal) to fail an examination

to ferment

to put together, to gather, to collect

national park

a forest-park, arboretum

park that is designated by nation and maintained by prefecture (in Japan, 都(と)道(どう)府(ふ)県(けん) (todōfuken)) or other local government; quasi-national park