But the commitment contract should be for small steps that are easy to measure.

但是“承诺合约”里至少应包含易操作的细微步骤。

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Stickk is a commitment contract website with a co-founder who has studied how effective the contracts can be.

Stickk是一个专门签订“承诺合约”的网站，有一个共同创办人，他会研究你合约的有效值。

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A web-based service called stickK, launched in 2008, makes it easy to set up an ironclad commitment contract.

一个基于网络的服务stickK(在2008年上线)，让建立一个不可动摇的承诺书变得容易了。

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The Cuban artist's posters will also be displayed throughout central Cardiff, while visitors to the exhibition at the National Museum of Art will be invited to sign a 'moral commitment contract' promoting immigrants' rights.

BBC: Artes Mundi 5: Exhibition and prize open in Cardiff

Faced with persistent speculation about his future as boss of Siemens, Mr Kleinfeld told the 20-strong board before their gathering that he would leave the company if they did not make a firm commitment to renew his contract.

ECONOMIST: German business

The site says the pledge is a "moral commitment" not a "legal contract".

BBC: US billionaires pledge 50% of their wealth to charity