那是因为病毒颗粒停泊在空气中悬浮的极小的水滴上。
That is because particles of the virus ride on the extremely small drops of water floating in the air.
尽管大部分气溶胶在空气中悬浮的时间很短，基本上在4天到一周之间，但是它们能扩散到很大的范围。
Although most aerosols remain suspended in the air for just short periods-typically between four days and a week-they can travel vast distances.
夹杂在油液中的空气由细小气泡组成，悬浮在油液中。
Entrained air in oil is comprised of tiny air bubbles suspended in the oil.
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