每日一笑(1.17)
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Heat and Cold
A class of Physics at school. The teacher: "Now, who can tell me anything about heat?" A small boy held up his hand: "Heat makes things larger, Sir, and cold makes things smaller." “All right! ”Give an example." "In summer days are longer because it is hot, in winter they are shorter because it is cold."
熱和冷
學校里正在上物理課.
老師提問:"現在誰能講一講對熱的認識?"一個小男孩舉手回答:"老師,熱能使東西膨脹,冷能使東西縮小."老師說:"很好,舉一個例子.""夏季,白天變長,因為天氣太熱;冬季白天縮短,因為天氣太冷."
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