dilates
v.
（使某物）扩大，膨胀，张大( dilate的第三人称单数 );
例句:
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Gas dilates the balloon.
气体使汽球膨胀.
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Exercise dilates blood vessels on the surface of the brain.
运动会使大脑表层的血管扩张。
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Nitroglycerin dilates blood vessels and increases blood flow to the tendons.
硝化甘油使血管膨胀增加了向腱子部位流动的血流量.
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How well this artery dilates indicates how coronary arteries are behaving.
来自BBC
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Other women have "cervical incompetency" the cervix dilates early and labor begins.
来自NEWYORKER
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It is known that time dilates length contracts, etc but we do not know why and how.
来自SA