如果每天骑自行车可以让你更健康，为什么不承诺每天坚持骑车，过上更健康的生活呢？

If cycling each day can make you healthier, why not commit yourself to it and have a better life?

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一种选择是在峰会中不承诺任何减排目标。

One option is to offer no firm emissions target at the conference.

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卫斯莱是一个有节操的人，并且除了能做到的事情外从来不承诺。

John Wesley was a man of principle and he never made his promise but put into practice of it.

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What if you have intimacy,we share secrets, passion, we feel physically attracted to each other but we're not making any commitments here."

如果有亲近关系，和激情体验,但是不做承诺“

耶鲁公开课 - 心理学导论课程节选

But our engineers work in a three-star hotel, not very flashy, not on the spotlight, and I only promised them to raise their salaries twice a year.

而我们的工程师在三星级酒店工作，不豪华，更不引人关注，我只承诺每年涨两次薪水。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

This is often the way relationships start "We like each other, I'm physically attracted to each other, I-- to you, I enjoy spending time with you but I'm not making any long-term commitments.

爱情经常以这种形式开场,我们喜欢对方，享受肌肤之亲-,享受一起度过的时光,但不做长远的承诺。

耶鲁公开课 - 心理学导论课程节选