真是个问题。胃需要时间来消化食物，如果你总是在吃东西，胃就不能辨别好坏物质，留其精华，去其糟粕。
Your stomach needs time to digest and if you keep food coming in, it'll have problems filtering the junk stuff and keeping the good stuff.
而是聚集在一些微小的区域里，它们可以帮助大脑辨别气味的好坏，同时还具备其他一些潜在的功能。
Instead, the receptors congregate in tiny hot spots that help the brain discern good smells from bad ones, among other potential functions.
他们熟悉用户的习惯，可以轻易辨别出错误、误操作和在线产品设计的好坏。
They know the users' habits so well that they can spot mistakes, malfunctions and bad online product designs.
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