雅思写作范文：9月雅思考试小作文范文集
本文来自雅思作文网liuxuequn.com《9月雅思考试小作文范文集》。 9月6日 task1 in cool climates special attention is given to the use of building materials that have a high “thermal mass”. insulation is used on the outside of heavy materials such as concrete, brick or adobe....