high summer 盛夏/仲夏，也可以指鼎盛时期，全盛时期

That was the high summer of English Literature.

那是英国文学的黄金时代。

Indian summer 深秋（初冬）的小阳春；（老年的）回春期

I had to take my holiday late but fortunately we had an Indian summer and the weather was splendid.

我只得晚些休假，不过幸运的是那次的天气不错，深秋初冬风和日丽。

The book describes the last 20 years of Churchill's life, including his Indian summer as prime¹ minister between 1951 and 1955.

这本书记述了丘吉尔最后的20年的生活，包括1951年到1955年担任英国首相时的幸福成功的晚年。

in the height of summer 盛暑期；在……的高潮中，在……的顶峰

I wouldn't go there in the height of summer.

我不会在盛夏时节去那里的。

summer holidays 暑假

During their summer holidays they cruised² further afield to Normandy and Brittany.

暑期他们乘船到更远的诺曼底和布列塔尼游览。

in the summer of one's life 正在壮年

"It's the biggest summer of his professional life," assistant coach Jim said.

助理教练吉姆说：“现在正值他职业生涯的壮年时期。”

summer complaint 夏季腹泻；夏日病 I’ve got a touch of the summer complaint. 我有点儿夏季腹泻了。

One swallow does not make a summer. 一燕不成夏。指的是勿以偏概全。

summer styles 夏装款式

Summer styles are often a foretaste of autumn fashion

夏装的款式常常是秋装的预兆。

summer house 避暑别墅，夏舍

She found a tiny summer house, built in Japanese fashion, around a diminutive³ pond

她在一个小池塘边找到一所日本式的小凉亭。

British Summer Time 英国夏令时间，美国人用daylight-saving time指“夏令时间”。