1·Last summer, when Chinese people fought the flood in the South, Beidou helped measure the rise and fall of the flood water.
去年夏天，当中国人民在南方抗洪时，北斗帮助测量了洪水的涨落。
2·Dikes limited the flood water.
堤防挡住了洪水。
3·Dikes confined the flood water.
堤防挡住了洪水。
4·The river was swollen with flood water.
洪水到来后河水上涨了。
5·The river was swollen with flood water.
河水因洪水而上涨。
6·The flood water nearly reached roof level.
洪水几乎涨到屋顶。
7·Flood water covered the fields by the river.
洪水淹没了河边的田地。
8·The broken wall was submerged by flood water.
这面断墙被洪水淹没了。
9·The garden wall is washed by the flood water.
大水冲刷著花园的围墙。
10·The garden wall is is washed by the flood water.
大水冲刷著花园的围墙。