1.
a futile effort; the therapy was ineffectual; an otiose undertaking; an unavailing attempt.
无用的努力；这个治疗方法没有效果；无用的承诺；无用的尝试。
2.
Your empty promises are lost on the skeptical consumer.
你的空头承诺对于多疑的客户来说毫无用处。
3.
A non-negotiable credit instrument is not an unconditional promise to pay.
不可转让的信用工具不是无条件的支付承诺。
4.
BP says it won't commit to a timeline to restart its oil field in Alaska.
BP称无法承诺重新启用阿拉斯加油田的时间。
5.
To commit (oneself) to a particular course of thought or action
承诺一特定的想法或承诺采用一特定的行动.
6.
One that makes a promise.
承诺者做出承诺的人
7.
The rule that there can be no acceptance by "silence" does not mean that it is always necessary to communicate words of acceptance to the offeror.
沉默无承诺的原则并不意味着向要约人传递"承诺"的言词是必需的。
8.
a failure of the seller's guarantee of good title.
售货者无法保证对商品质量的承诺。
9.
a failure to perform some promised act or obligation.
无法实行某种承诺或义务的行为。
10.
He doesn't have enough money to meet all his engagements, ie to make the payments he has promised to make.
他无钱偿付承诺的一切债务.
11.
A conditional acceptance is not an effective acceptance unless the offeror agrees to the condition.
有条件的承诺是无效的承诺，除非要约人对所附条件同意。
12.
Offers - Any fund promoter that offers a deal to buy into their fund that promises returns that seem too good to be true is probably offering just that, i.e. returns that are too good to be true.
＊回报承诺：基金推广公司若承诺令人难以置信的诱人回报，它 可能是做了个无法兑现的承诺。
13.
left a trail of Broken promises.
留下一串无用的诺言
14.
The Chinese government undertakes non-use of nuclear weapons against nonnuclear countries.
中国政府承诺不对无核国家使用核武器。
15.
She could not persuade herself as to the advisability of her promise, or that now, having given her word, she ought to keep it.
她无法确信自己的允诺是适当的，也无法肯定在作出了这个承诺以后自己是否该信守诺言。
16.
For you to enjoy the unparalleled service is the guarantee of our hotel.
让您享受举世无双的服务是本宾馆对您的承诺。
17.
How can kids tell when a person makes a promise he can't keep?
孩子们如何判断一个人作出了无法兑现的承诺?
18.
A negotiable credit instrument is a written and signed unconditional promise to pay a specified sum of money at a specified time.
可转让信用工具是一张经签字、无条件在规定的时间支付一定金额的书面承诺。