Have you had enough or do you want to swing some more?
Do you want to keep going or stop?
ーHave you had enough or do you want to swing some more?
「もういい？それとももうちょっとブランコする？」
Have you had enough? で「もう十分しましたか？」というニュアンスです。
ーDo you want to keep going or stop?
「もっとやる？それともやめる？」
keep going で「続ける」という意味なので、「続けるかやめる」と聞いています。
ご参考まで！
カナダ 
