N-VAR
夏天;夏季
Summer is the season between spring and autumn. In the summer the weather is usually warm or hot.
例句
I escaped the heatwave in London earlier this summer and flew to Cork...
今年初夏我逃离了伦敦的炎热，飞往科克去避暑。
It was a perfect summer's day.
那是一个美好的夏日。