1
in/during summer
表示季节时通常不加冠词，in summer 是常用短语。
I like to swim in summer.
我喜欢在夏天游泳。
夏天；夏季
先理解核心含义，再看它在真实句子里的用法。
夏天；夏季
the warmest season of the year; in the northern hemisphere it runs from the summer solstice to the autumnal equinox
I like to swim in summer.
我喜欢在夏天游泳。
四季之一,传统上为第二季,因地球倾斜和热滞后,通常是一年中最长且最热的日子。北半球一般指夏至至秋分,或六月、七月、八月；南半球为十二月、一月、二月。
One of four seasons, traditionally the second, marked by the longest and typically hottest days of the year due to the inclination of the Earth and thermal lag. Typically regarded as spanning either the period between the summer solstice to the autumnal equinox, or the months of June, July, and August in the Northern Hemisphere and the months of December, January and February in the Southern Hemisphere.
支撑建筑物的水平梁。
A horizontal beam supporting a building.
计算总和的人。
A person who sums.
一年中最温暖的季节；北半球从夏至到秋分
the warmest season of the year; in the northern hemisphere it extends from the summer solstice to the autumnal equinox
I usually go swimming in summer.
我通常在夏天去游泳。
AI contextual example
Last summer, we visited my grandparents in the countryside.
去年夏天我们到乡下看望了祖父母。
AI contextual example
Summer in this city is hot and humid.
这座城市夏天炎热潮湿。
AI contextual example
they spent a lazy summer at the shore
他们在海边度过了一个慵懒的夏天
WordNet
表示季节时通常不加冠词，in summer 是常用短语。
I like to swim in summer.
我喜欢在夏天游泳。
summer 作定语修饰名词，表示夏季的。
We had a wonderful summer vacation.
我们度过了一个愉快的暑假。
summer 作动词，意思是‘避暑，过夏天’，常与地点连用。
They summered in the countryside.
他们在乡下避暑。
指特定某年的夏季，要用定冠词 the。
The summer of 2020 was very hot.
2020年夏天非常热。
Not this
We like to go swimming on summer.
Use this
We like to go swimming in summer.
英语中，季节名称前通常用介词'in'而不用'on'。'on summer'是典型的介词误用。
Not this
I bought some summer's clothes.
Use this
I bought some summer clothes.
当名词直接修饰另一个名词表示属性时，通常不用所有格。'summer clothes'意为夏季服装，而'summer's clothes'语法错误。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
暑假
We plan to travel to Europe during summer vacation.
我们计划在暑假期间去欧洲旅行。
夏令营
The kids are excited about going to summer camp.
孩子们对去夏令营感到兴奋。
炎热的夏天
This hot summer has broken temperature records.
这个炎热的夏天打破了温度记录。
夏至
The summer solstice is the longest day of the year.
夏至是一年中白昼最长的一天。
暑热
We can't stand the summer heat without air conditioning.
没有空调我们受不了暑热。
夏装连衣裙
She wore a light summer dress to the picnic.
她穿了一件轻薄的夏装连衣裙去野餐。
秋老虎（指秋季反常的温暖天气）
We had an Indian summer in October.
十月里我们经历了一段秋老虎天气。
夏日恋情
They had a summer fling but parted in autumn.
他们有过一段夏日恋情，但在秋天分开了。
三伏天
The dog days of summer are the hottest part of the year.
三伏天是一年中最热的时候。
我能否将你比作夏日？
Shakespeare wrote, 'Shall I compare thee to a summer's day?' in Sonnet 18.
莎士比亚在第十八首十四行诗中写道：'我能否将你比作夏日？'
Use summer naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想‘sum’（总和），夏天是四季中温度总和最高的季节。
通常用于描述夏季，属于中性语域，比较常见于日常对话、天气预报和旅游规划中。
作名词时可用作可数或不可数；作动词时是不及物动词，常接地点介词短语
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.