commitment   n. 承诺；许诺；允诺承担；保证

【1】Commitment to do sth 承诺/保证做某事

He made a commitment to pay the rent on time.  他保证按时付房租.

The hospital has a commitment to provide the best possible medical care.  这家医院承诺要提供最好的医疗服务。

The builder had a commitment to finish the work on time.  那个承建商答应过准时完工.

We made a commitment to keep working together.我们承诺继续合作。

【2】make a commitment to sth承诺某事

They made a commitment to peace.  他们承诺要维护和平。

She doesn't want to make a big emotional commitment to Steve at the moment.她不想在此刻对史蒂夫在感情上作出重大的承诺。

【3】make a commitment to doing sth承诺做某事

The company's commitment to providing quality at a reasonable price has been vital to its success.这家公司保证供货质优价廉的承诺对它的成功起了决定性的作用。

commit    vt. 承诺，保证（做某事、遵守协议或遵从安排等）

【1】commit +资金 to sth/doing sth 在某事/做某事上投入/调配资金

They called on Western nations to commit more money to the poorest nations他们呼吁西方国家向极端贫困国家投入更多的钱。

The council has committed large amounts of money to housing projects.市政会在住宅项目上投入了大量资金。

【2】commit oneself to sth/doing sth想某事作承诺/保证/保证/承诺做某事

 I would advise people to think very carefully about committing themselves to working Sundays我建议大家慎重考虑一下答应周日工作的问题。

Borrowers should think carefully before committing themselves to taking out a loan.借款人应当慎重考虑之后再行借贷。

【3】be committed to doing sth 承诺做某事

The President is committed to reforming health care.总统承诺要改革卫生保健制度。