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我们可以品尝出四种基本的味道:咸、酸、苦和甜。其余的味道都是这几种味道的结合体。味道的轻重,确实是由它们分子的重量决定的。
We can taste four basic flavors: salty, sour, bitter and sweet. The rest of the taste is the combination of these types of taste. The severity of the taste is really determined by the weight of their molecules.