air-friendly 急用

air-friendly 急用 air air air Why were you air the room yesterday?改错急用 （）（）air（）填字母组英文单词.急用~ 请告诉我英语单词title,greeting,address,own,friendly,keed的英文解释和例句,急用, 用英语写一篇60词的短文.以‘如何在日常生活中减少污染’为题,可以用到以下单词：environmentally-friendly harmful emissions reduce air quality significant improvement friendly是什么意思 friendly意思 friendly 意思 “friendly”是什么意思 friendly是什么意思 environmentally friendly friendly反义词 friendly造句 pedestrian-friendly 英文改错句There is a air-conditioner in the room.急用