The inner electrons are so tightly bound that they are for all intents and purposes, immobilized when it comes to reactivity.

内部电子被紧紧地束缚着,因此无论怎样，当进行反应时，它都是固定的。

麻省理工公开课 - 固态化学导论课程节选

God's redemption of the Israelites is a redemption for a purpose, a purpose that doesn't become clear until we get to Sinai, for at Sinai the Israelites will become God's people, bound by a covenant.

上帝对犹太人的救赎是有目的的，直到了西奈，目的才显现出来，在西奈，犹太人将成为上帝的子民，与契约绑定。

耶鲁公开课 - 旧约导论课程节选

For Plato, it would seem, the study of politics was always bound up with deeply philosophical and speculative questions, questions of metaphysics, questions of the structure of the cosmos.

对柏拉图而言，那会看似学习政治学,永远是会深刻地,和哲学式与思索类的问题连结在一起，形上学的问题，宇宙结构的问题。

耶鲁公开课 - 政治哲学导论课程节选