关于写承诺书的重大困难是如何强制执行它们。

The big problem with writing commitment contracts is enforcing them.

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项目单位承诺书（详见附件2）。

Statement of undertaking of the project unit (see Annex 2 for details).

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承诺书就是它们听上去像的那个东西。

Commitment contracts are just what they sound like.

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沃尔玛和塔吉特也签署了同样的承诺书。

Walmart and Target have also signed up.

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目前，签订承诺书的企业数量还在持续增加。

At present, sign an undertaking of the number of enterprises also continued to increase.

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推荐信及承诺书。

Reference letter and letter of commitment.

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他还让这些银行巨头签了承诺书，一致同意接受注资。

He had them sign pledge CARDS agreeing to take the money.

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他还让这些银行巨头签了承诺书，一致同意接受注资。

He had them sign pledge CARDS agreeing to take the money.

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