學生：鑑於“背住背囊嘅人正在行下一些石階”呢句話。 “有啲遊客要落樓食飯喇”係真㗎咩?
師：大家諗一諗：
Just because some one has a backpack doesn't mean佢哋 is a tourist.淨係因為啲人 are walking down some stairs doesn't mean佢哋 are going to touch dinner. Just because some one has a backpack doesn't mean佢哋係 a遊客.淨係因為啲人行緊落樓梯並唔應該表示佢哋要去食晚飯。所以最後嘅答案係無法判斷。