A witness in court is obligated to tell the truth.

He felt obligated to help.

他觉得有责任予以帮助.

Only the seller of the option is obligated to perform.

而卖方则必须根据买方要求履行期权合约.

The principal may be obligated as if it had expressly granted the authority to agent.

被代理人可能要承担他原本未明确授权给代理人之责任.

You must feel obligated to him for his help.

你必须对他的帮助表示感激.

The maximum income algorithm is online realized by income forecasting and bandwidth obligating.

通过收益预测和带宽预留实现在线最大收益调度算法.

They reminded him of his contractual obligations.

他们提醒他注意合同规定的义务。

To pay taxes is an obligation.

纳税是一义务.

When teachers assign homework, students usually feel an obligation to do it...

老师布置作业时，学生通常认为完成作业是一种义务。

You're under obligation to care her.

你有义务照顾她. responsibility指 “由于法律、职业或道德等的要求而应尽的责任”,含有 “ 法津上对后果负责任”的意味,如:

His social obligation compels him to make a round of visits.

他的社会职责使得他不得不进行一系列访问.

The obligation was thrust on him.

这责任是强加给他的.

to fulfil your legal/professional/financial obligations

履行法律 / 职业 / 财务责任

They dispensed her from obligation.

他们免除了她的义务.

You are under no obligation to buy anything.

你不必非买什么东西不可。

We have a moral obligation to protect the environment.

我们有道义责任保护环境。

Ministers are under no obligation to follow the committee's recommendations.

部长不必非得听从委员会的建议。

Our school should be the security organs have completed the requirements of this obligation.

我们的学校应该是公安机关已完成的要求,这一义务.

I don't want people coming to see me out of a sense of obligation .

我不想让别人迫于无奈来看我。

If you are selling your property, why not call us for a free valuation without obligation?...

如果您打算出售房产，何不打电话让我们作免费估价呢？

We will send you an estimate for the work without obligation (= you do not have to accept it) .

我们将寄上工程估算，仅供参考。