Poker players often wear dark glasses to hide the dilation of their pupils when they are aroused that they cannot control.

当瞳孔放大被认为不可控时，扑克牌玩家们经常带着墨镜以掩盖他们瞳孔的变化。

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The researchers used a technique called flow-mediated dilation (FMD) to measure blood flow in each participant's arm at 30, 90, and 120 minutes after they drank their beverage.

研究者使用一种叫做FMD的技术，在饮用饮料后30、90、120分钟测量受试者的血流量。

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