He has committed himself to support them.是什么意思？

He has committed himself to support them.

他答应负担他们的生活。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

has

v. 有( have的第三人称单数 )，（亲属关系中）接受，拿，买到；

例句
...the operation a patient has had.
病人做过的手术

committed

adj. 忠诚的，坚定的；v. 保证（做某事、遵守协议或遵从安排等）( commit的过去式和过去分词 )，把…托付给，把…记（或写）下来，承诺；

例句
He was a man who abhorred violence and was deeply committed to reconciliation...
他是一个憎恶采用暴力而坚决主张和解的人。

himself

pron. （反身代词）他自己，（用以加强语气）他亲自，他本人；

例句
He pleaded guilty before a court martial to absenting himself without leave.
在军事法庭上他对自己擅离职守表示服罪。

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。

support

vt. 支持，帮助，支撑，维持；n. 支撑，支持者，[数学]支集，支撑物；

例句
...the Cunard Princess, which acted as a support ship for American forces.
用作美军支援船的公主号冠达邮轮

them

pron. 他们，她们，它们；

例句
I take care of them to the best of my abilities...
我尽我所能地照顾他们。