Bionic arms, legs, eyes and so on are electronic body parts, built to work like living ones — and in stories, to be stronger or faster than the real thing.

Bionic arms, legs, eyes and so on仿生手臂、仿生腿、仿生眼睛之類的東西are electronic body parts是電子做的身體部位，built to work like living ones做出來是要像真的身體部位一樣運作，and in stories而在故事裡to be stronger or faster than the real thing則要比真的更強、更快。

Engineers do make real electronic limbs that help people after injury; the everyday adjective then is a bit admiring, a bit science-fiction.

Engineers工程師do make real electronic limbs確實會做出真正的電子義肢that help people after injury幫助受傷後的人；the everyday adjective那日常用來形容的這個詞then就is a bit admiring, a bit science-fiction帶點讚嘆、也帶點科幻感。

In casual talk, though, people often use bionic with a smile: you ran up the stairs like you’re bionic, meaning only that you seemed unnaturally strong or quick. That joke-sense is very common. The word is informal when it is a joke, more technical when it names a device.

In casual talk不過在口語中，people常有人often use bionic with a smile會帶著笑意用bionic這個詞：you ran up the stairs like you're bionic像是說你跑上樓梯的樣子像bionic一樣，meaning only that you seemed unnaturally strong or quick只是說你看起來力氣或速度不正常的好。That joke-sense這種開玩笑的用法is very common很常見。The word這個詞is informal when it is a joke開玩笑時算口語，more technical when it names a device指真正的裝置時則比較技術性。

Though actually the word itself is a blend of bio- and electronic, and the super-strong-body meaning spread from 1970s American television — The Six Million Dollar Man and The Bionic Woman — which is why it still sounds a little like a show.

Though actually不過其實the word itself這個字本身is a blend of bio- and electronic是bio-（生物）和electronic（電子）合成的字，and the super-strong-body meaning而「超強身體」這個意思spread from 1970s American television是從1970年代美國的電視節目流行開來的——The Six Million Dollar Man and The Bionic Woman也就是《無敵金剛》和《無敵女金剛》——which is why it still sounds a little like a show這也是為什麼這個詞聽起來還是有點像節目名稱。