A non-smoker is a person who does not smoke — in ordinary talk, that means they do not smoke cigarettes, cigars, or a pipe. People use it when health, jobs, hotels, and dating come up: “I’m a non-smoker” is a short way to tell others you do not use tobacco that way.

A non-smoker非吸菸者 is a person who does not smoke指的是不抽菸的人 — in ordinary talk在日常說法裡 that means也就是說 they do not smoke cigarettes, cigars, or a pipe他們不抽香菸、雪茄，也不抽菸斗。People use it人們會用這個詞 when health, jobs, hotels, and dating come up碰到健康、工作、飯店、交友的話題時 "I'm a non-smoker"就說「我是不抽菸的人」 is a short way to tell others you do not use tobacco that way這是簡短告訴別人你不那樣用菸草的方式。

Though actually, the edges are messy. Someone who used to smoke but has stopped is usually called a non-smoker now, and so is someone who never smoked at all; the word does not tell you which.

Though actually不過其實, the edges are messy這個詞的界線有點模糊。Someone who used to smoke but has stopped曾經抽菸、現在戒掉的人 is usually called a non-smoker now現在通常也被叫做不抽菸的人, and so is someone who never smoked at all從來沒抽過菸的人也是; the word does not tell you which這個詞不會告訴你是哪一種。

It also usually points at tobacco smoke, not every kind of smoke. A person who does not smoke cigarettes but uses something else may still call themselves a non-smoker, and other people may not agree.

It also usually points at tobacco smoke它通常也是指菸草的煙, not every kind of smoke不是所有種類的煙。A person who does not smoke cigarettes but uses something else不抽香菸、但用其他東西的人 may still call themselves a non-smoker可能還是會自稱不抽菸的人, and other people may not agree但別人不見得會同意。

In writing it almost always keeps the hyphen.

In writing在書面上 it almost always keeps the hyphen它幾乎都保留連字號。