what could be nicer than有哪些用途剖析

The warm weather outside may look perfect for outdoor exercise. But for those who are not that sporty, what could be nicer than having a relaxing afternoon tea with a few good friends and taking a break from studying.

老师，这边what could be nicer than，有点看不明白，为何不能是it could be nicer than?



网友的句子，最后应该是个特殊疑问句，须加问号。

The warm weather outside may look perfect for outdoor exercise. But for those who are not that sporty, what could be nicer than having a relaxing afternoon tea with a few good friends and taking a break from studying?

【翻译】室外暖和的天气看着非常合适户外运动。但对于那些不那样喜欢运动的人来讲，还有哪些比和几个好朋友喝一杯轻松的下午茶，与离开学习休息一会儿更好呢？



我把这个特殊疑问句变成陈述句，能够帮助网友理解：

1. nothing could be nicer than having a relaxing afternoon tea with a few good friends and taking a break from studying.

2. 这个句子是个含有比较从句的复合句：

主句：nothing could be nicer

比较从句：than having a relaxing afternoon tea with a few good friends and taking a break from studying

3. 在比较从句中，两个并列的动名词短语作主语，后面省略了could be。

4. could 表示“推断”。