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When the water of a place is bad it is safest to drink none that has not been filtered through either the berry of a grape, or else a tub of malt. These are the most reliable filters yet invented.

当一个地方的水不好的时候，最安全的办法就是不喝任何未经过滤的水，无论是葡萄的浆果，还是麦芽。这些是迄今为止发明的最可靠的过滤器。

— Samuel Butler 塞缪尔·巴特勒