工人和雇主因为共同合约而联系在一起，这一合约双方中任何一方都能拒绝履行，而且这种关系在概念上是一种合伙关系。

The worker was bound to the master by a mutual contract that either one could repudiate, and the relationship was conceptualized as one of partnership.

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很少有数学结构在概念上像随机性那样简单。

Few mathematical constructs seem as conceptually simple as that of randomness.

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从概念上讲，电子商务与众所周知的商业服务并无不同，后者的服务包括像电话银行、“邮购”目录，或通过传真向供应商发送采购订单等。

Conceptually, e-commerce does not differ from well-known commercial offerings such as banking by phone, "mail order" catalogs, or sending a purchase order to supplier via fax.

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So the force that you're pushing down on here is the external pressure times the area.

或者压缩功的概念,在活塞上施加压力。

麻省理工公开课 - 热力学与动力学课程节选

Long before Milton had begun to tackle the problem, Christians had for centuries, for millennia, puzzled over the logical inconsistency between these two concepts.

早在弥尔顿应对这个问题之前，基督教徒们就已经花了成百上千年，为这两个概念之间逻辑上的前后矛盾感到困惑。

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You don't have this particular code on your handout, you do have a code that uses the same concept.

在你们的讲义上没有这种代码，你可以看到相同概念的一个代码。

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