These systems remove surplus water during periods of increased rainfall. However, both legal and illegal building projects have blocked the flow of water.

这些系统在雨水增多的时候用来转移过剩的雨水。然而，一些合法和非法的建筑项目堵塞了水流。

What's happening during snoring is that air flow is being partially blocked by tissues in the airway, as evidenced by a… snoring sound.

打鼾时，部分气流被呼吸道组织阻塞，鼾声就是证据。

Piece of that broke off, went up the vein, through the heart, blocked the blood flow to her lungs. No blood flow, no oxygen.

一小块掉了下来 随着血流 穿过她的心脏 堵在肺里。

Especially if this blood vessel was in your lungs, a pulmonary embolism, and you blocked the blood flow entirely to be able to get oxygenated, you're in big trouble.

尤其是如果你的肺里有血管，肺栓塞，而你为了获得氧气而完全阻塞了血流，你就有大麻烦了。