问题描述：
1 .My brother fell while he was riding his bicycle and hurt himself.
2 .It was raining when they left the station.
3 .When I got to the top of the mountain,the sun was shining.
翻译
2 .It was raining when they left the station.
3 .When I got to the top of the mountain,the sun was shining.
翻译
问题解答：
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