When you're left-handed, your arm might bump into the person next to you while eating.
ご質問ありがとうございます。
・「When you're left-handed, your arm might bump into the person next to you while eating.」
(意味) [左利き](https://eikaiwa.dmm.com/uknow/questions/3694/)だと食べる時に隣の人の腕とぶつかる。
<例文>When you're left-handed, your arm might bump into the person next to you while eating. So I usually have to be careful.
<訳> 左利きだと食べる時に隣の人の腕とぶつかるので普段から気をつけています。
参考になれば幸いです。