The usual American spelling of anaesthetic.

of anaesthetic是英式拼法 anaesthetic 的 The usual American spelling美式常見寫法。

As a noun, it is the medicine that stops you feeling pain: the gas or the drip that puts you under for an operation, or the local shot at the dentist so only one place goes numb. As an adjective, it describes that kind of medicine — an anesthetic gas, an anesthetic cream.

As a noun當名詞用的時候，it is the medicine它是指那種藥 that stops you feeling pain讓你不會感覺到痛的：the gas or the drip那種氣體或點滴 that puts you under for an operation讓你動手術時失去知覺的，or the local shot at the dentist或是牙醫用的局部麻醉針，so only one place goes numb讓身體只有一處麻掉。As an adjective當形容詞用時，it describes that kind of medicine是在形容那種藥——an anesthetic gas, an anesthetic cream像 anesthetic gas（麻醉氣體）、anesthetic cream（麻醉藥膏）這樣。

Doctors split it in practice: a local anesthetic leaves you awake; a general anesthetic sends you fully under.

Doctors醫生 split it in practice實務上會把它分成兩種：a local anesthetic局部麻醉 leaves you awake讓你保持清醒；a general anesthetic全身麻醉 sends you fully under讓你完全失去知覺。

British English keeps the extra a (anaesthetic, anaesthesia); American English drops it (anesthetic, anesthesia). The medicine is the same idea; only the letters change. You will see this spelling on American hospital forms and medicine packets.

British English英式英文 keeps the extra a保留多那個 a（anaesthetic, anaesthesia）；American English美式英文 drops it則把它去掉（anesthetic, anesthesia）。The medicine藥 is the same idea其實是同一個概念；only the letters change只是拼法不一樣。You你 will see this spelling會看到這種拼法 on American hospital forms and medicine packets出現在美國的醫院表格和藥品包裝上。

A rather literary stretch — calling a dull style 'anesthetic' — exists, but that is not how people use it in a clinic.

A rather literary stretch一種比較文學性的引申用法——calling a dull style 'anesthetic'把枯燥的文風說成『anesthetic』——exists確實存在，but不過 that is not how people use it in a clinic這不是在診所裡會這樣用的意思。