illegal

In most countries, it is illegal to drive a vehicle without a valid license and insurance coverage.

(Chinese) 在大多数国家，无有效驾照和保险驾驶车辆是违法的。

The factory was shut down by the government for dumping illegal toxic waste into the nearby river.

(Chinese) 该工厂因向附近河流倾倒非法的有毒废物而被政府关闭。