When a storm is blowing, the pressure drops, and you are often able to see things more clearly.

当风暴来临，气压会下降，你就能看得更清楚了。

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As the vapor condenses into rain, the local atmospheric pressure drops.

当水汽凝成雨水，会造成局域性的大气压力下降。

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If she is calm, her heart slows down and her blood pressure drops.

如果她很平静，心跳变慢，血压降低。

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In order to determine the location of the leak, the crew had been sealing off small peripheral modules of the space station while Mission Control looked for accelerated pressure drops inside the sealed-off sections.

MSN: Crew finds ��culprit�� in space station leak

When water velocity is high, the pressure within the liquid drops to below the vapour pressure of water, allowing tiny air bubbles to expand.

BBC: Shrimp, bubble and pop

The dangerous pressure wave that causes primary blast injuries drops off quickly with distance, but shrapnel can cause injury far from the attack.

FORBES: Blast Victims: What We Know About The Kinds Of Injuries That Occurred In Boston