The olfactory epithelium contains millions of bowling pin-shaped olfactory sensory neurons surrounded by insulating columnar supporting cells.

嗅觉上皮包含数百万个保龄球瓶状的嗅觉感觉神经元，周围是绝缘的柱状支持细胞。

Every single time you breathe in through your nose, the olfactory epithelium is alerted and the process starts again, over and over, all day long.

每一次你通过鼻子吸气时，嗅觉上皮都会收到警报，这个过程会一整天一遍又一遍地重新开始。

Smelling actually happens way up near the bridge of our noses in a postage stamp-sized square of tissue called the olfactory epithelium.

嗅觉实际上发生在靠近我们鼻梁的邮票大小的正方形组织中，称为嗅觉上皮细胞。

That odor-filled air heads right up your nasal passages in your nose where the odor molecules are finally trapped by a thin bit of tissue called olfactory epithelium.

充满气味的空气会直接进入你的鼻腔，在那里气味分子被称为嗅觉上皮的薄组织捕获。

So these airborne pizza molecules — many of which are just broken-off parts of fats and proteins — land on your olfactory epithelium and dissolve in the mucus that coats it.

所以这些空气中的披萨分子——其中许多只是脂肪和蛋白质的分解部分——降落在你的嗅觉上皮并溶解在覆盖它的粘液中。