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.
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Dad brings tools and a new inner tube outside.
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I hold the wheel while he removes the old tube.
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He pumps air into the new tube slowly.
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I check that the tire feels firm and round.
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We test ride slowly in the driveway.
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My bell still rings loud and clear.
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Now I know how to fix a flat tire.