A: There is one principle to green consumption, the less you use the better. In other words, if you can walk, don't ride, if you must ride, choose public transportation and don't drive a car.
答：綠色消費有一個原則，東西最好是愈少用愈好，換句話說，能走路就不坐車，非要坐車就選擇大眾運輸工具而不開車。