夏天英文短句如下：
1. Summer has come.
2. It's the height of summer.
3. Summer days are long and hot.
4. Summer is the season of picnics.
5. The heat of summer can be unbearable.
6. Summer evenings are perfect for strolling.
7. Summer vacation is here.
8. Summer is the time for fun in the sun.
9. Summer is a time for beach days and barbecues.
10. Summer is a time for long lazy days.