It's really childish to take offense when a child talks back to you, right?
It's really childish to get offended because a child answered back to you, right?
It's really immature to take it seriously when a child talks back to you.
以下の単語・フレーズの意味を確認した上で、上記の英訳を参考にしてください！
- childish 子どもっぽい
- immature 未熟な
- take offense / get offended 腹を立てる
- take it seriously 真に受ける
- talk back / answer back 口答えする
ちなみに、immature の反対は mature で「成熟した」という意味です。
その他の言い方：
- It's really childish to get worked up because a child answered back to you, right?
- Getting genuinely offended because a child talked back to you is rather childish, right?
- It's really immature to get angry because a child answered back to you.
Getting mad because your kid talked back to you isn't very mature.
これなんてどうでしょう。
↓↓↓
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「Getting mad just because your kid talked back to you isn't very mature.」
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※「口答えする」＝「talk back」
※「大人げない」＝「not mature」、「immature」、「childish」
あと、こういう言い方もできます。
↓↓↓
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「If your kid talks back to you, keep your cool. That's the adult thing to do.」
（子供に口答えされたら、ムキになるな。それが、大人ってものよ。）
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※「keep your cool」＝「冷静さ［平常心］を保つ」
※似たような表現で、「stay chill」もあります。
それでは、keep our coolしましょうね～☆
アメリカ合衆国 
