shān / lǐ / de / kōng / qì / lěng / liè / ér / qīng / xīn / qīng / chén / chū / mén / yào / duō / chuān / yī / jiàn / wài / tào山里的空气冷冽而清新,清晨出门要多穿一件外套。The mountain air is cold and fresh, so you should wear an extra coat when going out in the morning.