夏天用英语来怎么说

In English, summer is the season that typically falls between June and September in the Northern Hemisphere, and December and March in the Southern Hemisphere. You can use the word "summer" to refer to this season in English. For example, you could say:
"I love summer because the weather is warm and there are so many fun outdoor activities to do."
"Summer is my favorite season because I get to go to the beach and swim in the ocean."
"I can't wait for summer to arrive so I can spend more time outside in the sun."
You could also use phrases like "the summer months" or "the summer season" to refer to this time of year.