A thrombus may cause sudden closure of the vessel with complete obstruction of the blood flow.

血栓会引起血管突然阻塞，造成血流完全中断。

youdao

Objective To evaluate the clinical effects of the anterior chamber penetration using acupuncture needle on treating the sudden attack of the Angle closure glaucoma.

目的探讨毫针前房穿刺放液处理急性闭角型青光眼急性发作的疗效。

youdao

The sudden snowfall has caused much inconvenience for many Austrians, forcing the closure of some scenic zones on the Alps and triggering numerous car accidents.

这场突如其来的降雪给很多奥地利人的日常生活带来方便。

youdao

But sudden closure would still be a shock.

ECONOMIST: Coal mining in Germany

The development, announced Wednesday, is aimed at saving drivers time when a sudden road closure takes place or construction blocks their usual route, and dealing with temporary hazards like flooding or storms.

FORBES: Traffic App Waze Introduces Real-Time Map Changes ?