Specialized describes something made, trained, or developed for one particular job, rather than for general use. A specialized tool does one narrow thing very well.

Specialized describes something made, trained, or developed for one particular job, rather than for general use形容一個東西是為了某一項特定工作而做、訓練，或開發出來的，而不是給一般用途用的。A specialized tool一個specialized的工具 does one narrow thing very well只把一件很小範圍的事做得非常好

A specialized doctor treats one area of the body. Specialized knowledge is deep in one subject rather than broad. Specialized equipment is what you need for a task that ordinary equipment cannot handle.

A specialized doctor一位specialized的醫生 treats one area of the body只治療身體的某一個部位。Specialized knowledge專門知識 is deep in one subject rather than broad是在一個科目裡很深入，而不是廣泛。Specialized equipment專門設備 is what you need for a task that ordinary equipment cannot handle是你在一般設備做不到的任務裡會需要的東西

The useful contrast is with general. Compare 'a general hospital' with 'a specialized clinic', or 'a general knowledge quiz' with 'specialized knowledge of insects'.

The useful contrast有用的對比 is with general是跟general（通用的）相比。Compare 'a general hospital' with 'a specialized clinic',把「a general hospital」跟「a specialized clinic」比較看看，or 'a general knowledge quiz' with 'specialized knowledge of insects'或把「a general knowledge quiz」跟「specialized knowledge of insects」比較看看

Specialized points inward and downward — narrower, deeper. It comes with a quiet trade-off built in, and good writers use this on purpose. Specialized usually means better at that one thing and less useful for everything else. So 'specialized equipment' can also hint at expensive, hard to find, hard to replace.

Specialized專門化 points inward and downward指向裡面、指向更深──narrower, deeper範圍更窄、程度更深。It它 comes with a quiet trade-off built in內建了一個不明顯的取捨，and good writers use this on purpose好的寫作者會刻意利用這一點。Specialized專門化 usually means better at that one thing and less useful for everything else通常代表在那一件事上更厲害，但對其他事情比較沒用。So所以 'specialized equipment' can also hint at expensive, hard to find, hard to replace「specialized equipment」也可能暗示昂貴、難找、難替換

In biology it is used the same way about living things: an animal specialized for eating bamboo is superbly good at bamboo and in real trouble if the bamboo goes.

In biology在生物學裡 it is used the same way about living things這個詞用在生物身上時是一樣的道理：an animal specialized for eating bamboo一隻specialized在吃竹子的動物 is superbly good at bamboo and in real trouble if the bamboo goes在竹子這件事上非常厲害，但竹子一旦消失就會有大麻煩

One spelling note: British writing often prefers specialised, American writing specialized. Both are correct; -ized is safe everywhere and is what most international publishers use. Taiwan textbooks usually follow American spelling.

One spelling note一個拼字上的小提醒：British writing英式寫法 often prefers specialised比較常用specialised，American writing美式寫法 specialized用specialized。Both都 are correct是對的；-ized -ized is safe everywhere在哪裡用都安全，and is what most international publishers use而且是大多數國際出版社使用的拼法。Taiwan textbooks台灣的教科書 usually follow American spelling通常跟隨美式拼法