這條河流的水勢非常湍急，請不要靠近。
The current of this river is very rapid, please do not go near it.
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Example sentences
暴雨過後，這條河的水勢變得非常湍急。
暴雨过后，这条河的水势变得非常湍急。
After the heavy rain, the water force of this river became very rapid.
Usage Notes
Describes the intensity, speed, or volume of a water current.
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