渴望与故态复萌是成瘾的关键要素，我们已能利用不同方法，在饮糖的大鼠身上证明这些行为。
Craving and relapse are critical components of addiction, and we have been able to demonstrate these behaviors in sugar-bingeing rats in a number of ways.
研究者将动物置于不变的黑暗环境中并记录它们的行为方式，通过这种标准的生活节律测试发现高脂饮也会影响动物的性能。
The high-fat diet also affected the animals' performance on a standard test of circadian rhythm, in which researchers keep animals in constant darkness and record their patterns of behavior.
他爱吃美食，爱饮美酒，虽然他认为这是一种不道德的有损于自尊心的行为，但是他不能拒绝他所参与的单身汉社会的娱乐活动。
He liked a good dinner and he liked strong drink; and, though he thought it immoral and degrading to yield to them, he was unable to resist the temptations of the bachelor society in which he moved.
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