喝河水很容易闹肚子。
一辆牛车正在过河，所以河水很脏，不能喝。
A bullock cart is crossing the river now, so the water is dirty and it can't be drunk.
小溪的水是小飞马可以喝的水，而河水是小飞马用来游泳捕鱼的地方。
The water in the stream is small Pegasus can drink the water, and the river is the Pegasus juniorsto swimming fishing area.
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