And so the energy is zero because the electron is no longer bound. It is free.

所以这个系统能量为0，因为,电子不再受束缚了，它自由了。

麻省理工公开课 - 固态化学导论课程节选

The similes are continually working to unleash -and they're really quite unruly in this respect -to unleash the moral and the theological confusion that so much of the rest of the poem seems really quite eager to pin down and to fix.

这里的比喻不断的想要解脱束缚,-它们从这个方面来看也的确不受什么束缚,-解脱道德上和理论上的混乱无序,这首诗的剩余部分都显得急切于,下定论进行弥补。

耶鲁公开课 - 弥尔顿课程节选

You shouldn't be able to hear very much either, and it mustn't have been too delightful to breathe out of the thing, although your nose is free, but it's covered by a nose piece.

而且也听不见什么了,同时,戴着头盔呼吸也不是很顺畅,虽然鼻子并不受束缚,但是上面有一块小薄片覆盖着

耶鲁公开课 - 古希腊历史简介课程节选