Their public health programme had to be severely curtailed.是什么意思？

Their public health programme had to be severely curtailed.

他们的公共卫生计划不得不大大收缩。

their

pron. 他（她，它）们的，在提及性别不详的人时，用以代替 him 或 her；

例句
Their permissiveness toward their children reflects the wild abandon of their own lives.
他们对孩子的放任折射出他们自身生活的放浪形骸。

public

adj. 公众的，公共的，公开的，政府的，人人知道的，知名的；n. 大众，社会，公共场所，（文学家等的）爱读者；

例句
The public never had faith in his ability to handle the job...
公众从来不相信他有能力胜任这一职位。

health

n. 健康状况，卫生，保健，昌盛，兴旺；

例句
In my local health centre there's about forty parking spaces...
我们本地的保健中心约有40个停车位。

programme

n. （演出或活动的）程序，计划，节目，课程；vt. 计划，训练，培养，预调；vi. 编程序，制作节目；

例句
This degree programme is fully accredited by the Institution of Electrical Engineers.
这门学位课程经电气工程师学院鉴定完全合格。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

be

v. 是，有，存在，做，成为，发生；aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质；

例句
The older child should be able to prepare a simple meal...
那个年纪稍大的孩子应当会做一顿简单的饭菜。

severely

adv. 严格地，严重地，严厉地，严肃地；

例句
The accident left the boy severely brain-damaged and almost totally reliant on others.
那次事故使这个男孩脑部严重受损，生活几乎完全依赖别人。

curtailed

v. 截断，缩短( curtail的过去式和过去分词 )；

例句
I eschewed upbraiding, I curtailed remonstrance.
我避免责备,少作规劝.