he would understand water
This means that a person's life at the beginning of pure time, acquaintance the world, everything is fresh, the eyes to see what is what, they told him this is the mountain, he would understand the mountain, and told him this is the water, he would understand water.
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he would understand water
他会理解水
以上为机器翻译结果，长、整句建议使用 人工翻译 。