In writing, s/he is a short way to say she or he when the person might be male or female, or when you mean any person. You see it in older textbooks, forms, and careful office English: 'If a student is late, s/he must sign in.' People almost never say it out loud as one sound; they read it as 'she or he'.

In writing, s/he is a short way to say she or he when the person might be male or female, or when you mean any person在書面上，s/he是「she or he」的簡寫，用在這個人可能是男性也可能是女性，或是泛指任何人的時候。You see it in older textbooks, forms, and careful office English比較舊的教科書、表格和講究的公文英文裡會看到它："If a student is late, s/he must sign in.""'If a student is late, s/he must sign in.'"（如果學生遲到，他／她必須簽到。）People almost never say it out loud as one sound人們幾乎不會把它當成一個音唸出來；they read it as 'she or he'"they read it as 'she or he'"，會唸成「she or he」。

Though actually, a lot of writers have moved on. Singular they ('If a student is late, they must sign in') is now the usual choice in many schools and workplaces, because it is shorter and does not pick a gender. s/he still turns up when someone wants to be careful on paper but does not like they for one person.

Though actually, a lot of writers have moved on不過其實很多作者已經不這麼寫了。Singular they ('If a student is late, they must sign in') is now the usual choice in many schools and workplaces單數的they（像「If a student is late, they must sign in」這樣）現在在很多學校和職場裡是常見的選擇，because it is shorter and does not pick a gender因為比較短，而且不用選定性別。s/he still turns up when someone wants to be careful on paper but does not like they for one persons/he還是會出現，如果有人想在書面上講究一點，又不喜歡用they指單一個人。

It is a writing trick, not a word you use in speech.

It is a writing trick, not a word you use in speech這是書寫上的手法，不是說話時會用的字。