日常英语场景30篇（1）
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Fixing a Bicycle
修理自行车
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My bike tire is flat after riding on gravel.我在碎石路上骑车后，自行车轮胎瘪了。
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Dad brings tools and a new inner tube outside.爸爸把工具和新内胎拿到外面。
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I hold the wheel while he removes the old tube.我扶着车轮，他拆下旧内胎。
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He pumps air into the new tube slowly.他缓慢地给新内胎充气。
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I check that the tire feels firm and round.我检查轮胎是否饱满、圆润。
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We test ride slowly in the driveway.我们在 driveway 上慢速试骑。
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My bell still rings loud and clear.我的车铃依然响亮清晰。
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Now I know how to fix a flat tire.现在我知道怎么补胎了。