Poor blood oxygen levels and blood vessel blockages in people with sickle-cell disease can lead to chronic acute pain syndromes, severe bacterial infections, and necrosis (tissue death).

镰状细胞病患者血液含氧量低并且发生血管堵塞，可导致出现慢性和急性疼痛综合症、重度细菌感染和坏疽(组织坏死)。

youdao

There are two main forms of lower back pain: acute and chronic.

下背部的疼痛发主要有两种类型：急性和慢性。

youdao

As well as those chronic problems, the EU faces an acute crisis in its economic core, the 16 countries that use the single currency.

除了这些长期的问题之外，欧盟的经济核心——16个使用单一货币的国家——也面临着严重的危机。

youdao

Doctors speak of three kinds of pain: acute,chronic and breakthrough.

VOA: special.2009.02.10

Acute and chronic pain can be mild or severe.

VOA: special.2010.05.04

"If there is any truth to that, can you imagine the impact on hunger, on acute and chronic malnutrition?" Scientists say the warming of the planet will be gradual, but that extreme weather events will increase in frequency and intensity.

VOA: standard.2010.01.02

Pollution from them causes chronic and acute respiratory ailments and premature death, and it contributes to global warming.

NPR: EPA Proposal Eases Rules on Pollution Controls

Doses may be chronic or acute depending upon the duration of exposure.

FORBES: Infographic: How Much Radiation Could You Survive?

This touched the heart of the matter, for if he was guilty as charged, Harold Shipman undoubtedly had a chronic and acute impulse control problem.

BBC: Behind the mask