mild dehydration

例句：

1. 1. He was mildly dehydrated from the heat.
   他因炎热而轻度脱水。
2. 2.Mild dehydration can lead to serious health problems if left untreated.
   轻度脱水如果不治疗可能会引起严重的健康问题。
3. 3.During a hot summer day, it's important to stay hydrated and avoid mild dehydration.
   在炎热的夏天，保持水分充足并避免轻度脱水很重要。