In this case, semaglutide is triggering GLP-1 receptors in the pancreas, causing the organ to pump out more of the hormone.

这里，Semaglutie会触发胰腺中的GLP-1受体，导致器官分泌更多的激素。

Under normal circumstances, adenosine triggers these receptors and it produces a feeling of relaxation and even drowsiness for some people.

在正常情况下，腺苷会触发这些受体，让一些人产生放松甚至困倦的感觉。

Sometimes, molecules with completely different 3D shapes can trigger the same receptor, so some scientists think molecular vibrations might determine which keys unlock which receptors.

有时，具有完全不同三维形状的分子可以触发相同的受体，因此一些科学家认为分子振动可能决定哪些键可以解锁哪些受体。

It might be that once the body metabolizes all of the caffeine, then the adenosine is finally able to trigger those receptors and really, really make us feel tired and drowsy.

这可能是因为，一旦身体代谢了所有的咖啡因，腺苷最终会触发这些受体，让我们感到疲惫和困倦。