'tel' is the short written form of 'telephone number'. You will almost never hear it said out loud — it lives on paper and on screens, in the places where space is tight and everyone already knows what is coming: business cards, letterheads, shop signs, adverts, the contact box at the bottom of a form.

'tel' 'tel' is the short written form of 'telephone number' 是「telephone number」的書面縮寫。You will almost never hear it said out loud 你幾乎不會聽到有人把它唸出來 — it lives on paper and on screens 它是活在紙上跟螢幕上的東西, in the places where space is tight and everyone already knows what is coming 用在空間有限、大家都知道接下來是什麼的地方: business cards 名片, letterheads 信頭, shop signs 店家招牌, adverts 廣告, the contact box at the bottom of a form 表格底下的聯絡資訊欄

It is normally written with a full stop after it, 'Tel.', because it is a shortening of a longer word, and often with a capital T at the start of a line. Then a colon or just a space, then the number: 'Tel: 02-2345 6789'. On the same card you will usually see its companions — Fax, Mob (mobile), Add or Addr (address), Email.

It is normally written with a full stop after it, 'Tel.' 它後面通常會加句點，寫成「Tel.」, because it is a shortening of a longer word 因為它是一個較長的詞的縮寫, and often with a capital T at the start of a line 而且行首常常用大寫T。Then a colon or just a space 接著是冒號或只是個空格, then the number 然後是號碼: 'Tel: 02-2345 6789' 「Tel: 02-2345 6789」。On the same card 在同一張名片上 you will usually see its companions 你通常還會看到跟它一起出現的 — Fax 傳真, Mob (mobile) 手機, Add or Addr (address) 地址, Email 電子郵件

When you read it aloud, you say the whole thing: 'Tel. 02-2345 6789' is read as 'telephone oh two…' or, more naturally these days, 'the number is…'. Nobody says 'tel'.

When you read it aloud 當你把它唸出來的時候, you say the whole thing 你會唸完整的字: 'Tel. 02-2345 6789' is read as 'telephone oh two…' 會唸成「telephone oh two...」 or, more naturally these days, 'the number is…' 或者現在更自然的說法「the number is...」。Nobody says 'tel' 沒有人會唸「tel」這個字

It feels slightly formal and slightly old-fashioned now. It belongs to the era of the printed business card and the phone book.

It feels slightly formal and slightly old-fashioned now 現在聽起來有點正式又有點過時。It belongs to the era of the printed business card and the phone book 它屬於印刷名片跟電話簿的那個年代

Younger people making a website or an Instagram page are more likely to write a phone icon, or just 'Phone:', or nothing at all. But it is still completely standard on official forms, letterheads and shopfronts, and you will meet it constantly on business cards in Taiwan.

Younger people making a website or an Instagram page 年輕人做網站或Instagram頁面的時候 are more likely to write a phone icon, or just 'Phone:', or nothing at all 比較可能會用一個電話圖示，或直接寫「Phone:」，或什麼都不寫。But it is still completely standard 但它在正式場合仍然完全是標準用法 on official forms, letterheads and shopfronts 在官方表格、信頭和店面招牌上, and you will meet it constantly on business cards in Taiwan 而且你在台灣的名片上會一直看到它