玩耍似乎是具有相当复杂的神经系统的动物（主要是鸟类和哺乳动物）的一种发育特征。

Play appears to be a developmental characteristic of animals with fairly sophisticated nervous systems, mainly birds and mammals.

youdao

需要对现有的系统进行相当大的改进。

Considerable modification of the existing system is needed.

《牛津词典》

在任何时候，看板(相当于系统中的“能量”)的最大数量都与在制品的上限保持守恒。

The maximum number of Kanbans (the "energy" in the system) is fixed and physically conserves the upper limit of WIP at any given time.

youdao

So claims that--about the failure of conservation in children at different ages could be easily tested and systematically tested, and in fact, there's a lot of support for them.

关于不同年龄阶段的儿童,缺乏守恒概念的论断,能够很轻易的得到系统的检验,事实上,有相当多的证据支持这些论断

耶鲁公开课 - 心理学导论课程节选

It's a little bit of a digression, but one of the things that I've witnessed over the past twenty years is that the leakage of the -the leakage from the system in terms of the returns that go to the owners of capital -leakage has increased enormously.

讲一点稍稍离题的内容,我发现,过去的二十年中,这种损耗,这种减损资本所有者收益所得的,系统性损耗,有相当巨大的增长

耶鲁公开课 - 金融市场课程节选