People play it in the open air.
D
举一反三
- People can open it and let in light and air.
- 中国大学MOOC: Some people become （4） in winter, when the days are dark and most people spend less time in the open air.
- People eat dumplings and new-year cakes(). A: in the open air B: in their houses C: in the parks D: near their houses
- 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.
内容
- 0
2. We got together to have an outdoor party and __________ over an open fire in the open air.
- 1
The air after the rain is excellent. I love to _____ ( 吸入 ) the clean air.
- 2
The manager told me to open a window and ___________ some fresh air.
- 3
Electric vehicles will save a lot of air (pollute)______ because there will be emission of CO2 in the air.
- 4
Electric vehicles will save a lot of air (pollute)______ because there will be no mission of CO2 in the air.