Every time they're changing your hand is going down so chord changes may be the most powerful of all of these aspects of where the down beat is.

他们变化的时候你的手势都是向下的,所以在所有的途径当中通过和弦的变化,来判断重拍在哪儿可能是最有效的方法

耶鲁公开课 - 聆听音乐课程节选

The balance of sodium movement relative to potassium movement changes because there's this resting movement of all these molecules anyway, but that balance changes dramatically when these ion - when these gated ion channels open.

钠钾各自运动始终保持动态的平衡,因为尽管在静息状态,所有这些离子也在运动,但是平衡的剧烈变化,只发生在这些门控离子通道打开的时侯

耶鲁公开课 - 生物医学工程探索课程节选