请列举5个描述夏天的常用词汇，用json格式输出，每个词汇需附带一个简短的描述。
user
```json
{
 "summer_words": [
 {
 "word": "炎热",
 "description": "形容夏天高温的天气。"
 },
 {
 "word": "阳光",
 "description": "指夏天的强烈日照。"
 },
 {
 "word": "蝉鸣",
 "description": "夏天特有的昆虫叫声。"
 },
 {
 "word": "游泳",
 "description": "夏天常见的消暑活动。"
 },
 {
 "word": "冰淇淋",
 "description": "夏天受欢迎的冷饮。"
 }
 ]
}
```
assistant