拘る

プログレッシブ和英中辞典(第4版)

こだわる【^▲拘る】

〔物事にやかましい〕be particular ((about))；〔気にする〕worry ((about))；〔固執する〕stick ((to))

色にこだわる人には紫のほうを勧める
To those who are particular about color, I recommend the purple one.

礼儀作法にこだわる
「worry about [stick to] formalities

細かいことにこだわる
fuss over (small) details

彼は細部にこだわる人だ
He is a stickler for detail.

父親との関係にこだわっている
He has a complex about his father.／《口》 He is hung up on his relationship with his father.

かかわる【^▲拘る】

adhere to; stick to

つまらないことにかかわるのはよしなさい
Don't be such a stickler for detail.／Don't be so scrupulous [particular] about little things.

出典　小学館「プログレッシブ和英中辞典(第4版)」