A chronic illness or disability lasts for a very long time. Compare acute.
近义词
long-term
双语例句
例：
chronic back pain.
长期背痛。
例：
The condition is often chronic.
这种病症通常是长期的。
2.?积习难改的
You can describe someone's bad habits or behaviour as chronic when they have behaved like that for a long time and do not seem to be able to stop themselves.
双语例句
例：
a chronic worrier.
一个老是发愁的人。
3.?严重的
A chronic situation or problem is very severe and unpleasant.
近义词
severe
双语例句
例：
One cause of the artist's suicide seems to have been chronic poverty.
那位艺术家自杀的原因之一好像是极度贫困。
例：
There is a chronic shortage of patrol cars in this police district.