He farted but he didn't think I noticed so he didn't say anything.
全部訳します。
うちの子どもです。About my son/daughter.
「今オナラしたでしょ？」You farted, didn't you.
「バレないと思って黙ってたんでしょ！」You thought I wouldn't notice, huh?
「何でバレた？」How did you know?
「そんなの臭いですぐにわかるよ」It's easy. Because it stinks!
子供面白いですね(^ ^)
Even though I farted, I think no one realised so I kept quiet
Although I farted, I thought no one realised so I kept secret.
オナラ - fart, trump, pump, let one rip, cut the cheese
たくさnたくさんあります
今オナラしたでしょ？ - you just farted right?
バレないと思って黙ってたんでしょ！- You didn’t want anyone to know so you stayed quiet right?
なんでバレた？ - how did you know it was me?
そんなの臭いですぐにわかるよ - That kinda smell, its easy to know
バレる - to find out, to know, to realise
臭い - smelly, smells bad
でしょ - right?
すぐわかる - easy to know, guess easily, realise quickly
と思って - I thought, I guessed
アメリカ合衆国 
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