A receptor is a tiny part of the body that receives a signal from outside — light, heat, pressure, a smell, a chemical — and helps the body react. The sense you meet first in school is often a nerve ending: the receptors in your skin that feel heat, or in your eye that catch light.

A receptor receptor是 a tiny part of the body身體裡一個小小的部位 that receives a signal from outside負責接收外面來的訊號——light, heat, pressure, a smell, a chemical光、熱、壓力、氣味、化學物質——and helps the body react幫助身體做出反應。 The sense你在學校最先學到的意思 you meet first in school often is a nerve ending通常是神經末梢： the receptors in your skin that feel heat皮膚裡感覺熱的receptors, or in your eye that catch light或是眼睛裡接收光線的那些。

Though actually, the word biologists use all the time later on is a bit different: a receptor can also be a protein on a cell that a hormone or a drug fits into, like a key in a lock. Same picture — something that receives a message — but one is a nerve ending and one is a molecule.

Though actually不過其實, the word生物學家後來一直用的這個字 biologists use all the time later on is a bit different有點不一樣：a receptor receptor can also be也可以是 a protein on a cell細胞上的一種蛋白質 that a hormone or a drug fits into荷爾蒙或藥物會嵌進去的地方, like a key in a lock就像鑰匙插進鎖裡。 Same picture一樣的畫面——something that receives a message某個接收訊息的東西——but one is a nerve ending and one is a molecule只是一個是神經末梢，一個是分子。

It is not a radio or a TV receiver, and it is not a receptacle (a box or bin).

It is not它不是 a radio or a TV receiver收音機或電視的receiver, and it is not a receptacle也不是receptacle (a box or bin)（箱子或垃圾桶）。