It’s impossible for people to spin 1260 degrees in the air.
举一反三
- _________(pollute) air and water will do harm to people's health.
- The pressure of pilot air is usually （） than that of starting air.
- 词汇与结构 Warm air is less dense than cool air, and _____ air is less dense than dry air.
- People play it in the open air.
- The air after the rain is excellent. I love to _____ ( 吸入 ) the clean air.