a really hot day的用法和样例：
- I found a really hot '60s pinstripe suit on Queen Street with a perfect shape.
- On a hot day a dip in the sea is sheer paradise.
- A cooling drink is welcome on a hot day.
- The guy on the scooter leans over and takes an admiring look at the inside of the Porsche and tells the driver that he has a really hot car.
- I hate wearing a suit on a hot day.