not necessary to; don't have to

If only ~

It's good / okay to... / is fine

a surname

(Internet slang) complaint; grumble

(chiefly predicative) sick, having an urge to vomit / disgusting, repulsive / Used other than figuratively or idiomatically: see 気持ち, 悪い. ("feeling bad; in a bad mood")

a forest-park, arboretum

national park

parkway

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