https://online2.tingclass.net/lesson/shi0529/0008/8959/240.mp3
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The doorbell rang. He opened the door. His wife stood there. She held a brown grocery bag in each hand. The groceries were from Whole Foods on 7th Avenue. She walked into the apartment. She put the bags down. He carried the bags to the refrigerator. Each bag felt almost as heavy as a bowling ball. "Holy moly!" he said. "Honey, stop carrying so much food. Do you want a bad back like mine? Just buy half this much in the future." She said, "Buy half as much? Then I have to make two trips. Two trips take twice as much time. I'm trying to make money so we can buy our own condo. It's going to take me 10 years to make that money. If I carry just one bag, it will take me 20 years! In 20 years we might both be dead." He put the groceries away.