Others, like high fat meals (think cheeseburgers and BLTs) provide more sustained energy, but require our digestive system to work harder, reducing oxygen levels in the brain and making us groggy.
而其他的呢，比如说高脂肪食物(肉饼啊，三明治之类)提供更加持续的能量，但是要求我们的消化系统更加努力运转，同时降低大脑中氧含量，让我们觉得昏昏沉沉。
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