寂天英語／為什麼會肚子餓 - 生活英語 - 線上學習 - udn文教職考

網站：mag.udn.com        收錄時間：2013-3-4

Have you ever wondered why you feel hungry? It’s your stomach telling you it is time to eat. When your stomach is empty, it begins to contract. Contract means squeeze to together. There are about three contractions each minute. If you don’t eat, they begi 前往原始網址

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