医生说他的情况挺恶劣的。

Yīshēng shuō tā de qíngkuàng tǐng èliè de.

The doctor said his condition is pretty serious.

他们的生活环境很恶劣。

Tāmen de shēnghuó huánjìng hěn èliè.

Their living conditions are very harsh.

今天的天气非常恶劣，下着大雨。

jīntiān de tiānqì fēicháng èliè, xiàzhe dàyǔ.

The weather today is extremely bad, and it's raining heavily.