He says North Korea offered to hold working-level discussions next Thursday.

VOA: standard.2009.06.05

A level of humility, and hyper sensitivity to the suffering of poor people, the oppressed people and working people.

他对穷苦人民，受压迫的人民,以及工人阶级有着极大的谦逊和极高的敏感。

普林斯顿公开课 - 人性课程节选

They make sure that everything is on the level and working right.

它保证了所有证券行为,都是正确合法的。

耶鲁公开课 - 金融市场课程节选

"We are working on a grassroots level to identify the issues that are going on in the community, and developing and cultivating leaders to take charge of their own communities and really changing the conditions that they find themselves in.

VOA: standard.2010.02.24

So let me rephrase, are these people, are these pair of partners in the firm, or two students working on their homework assignments, are they working more or less than an efficient level?

让我换个表达方式吧,这些企业合伙人,或者两个共同协作做作业的同学,他们是否实现了最优效率了呢

耶鲁公开课 - 博弈论课程节选