#123 暑いので脱水を起こさないよう、ちゃんと水分をとってね。

■ Drink enough water so you don't get dehydrated because it's hot.
■ Make sure to drink enough water so you don't get dehydrated because it's hot.
■ Keep yourself hydrated because it's hot.

３番目のは、あなたの体内の水分量を保ってねという理解で＾＾