sq. is the short written form of square. It does two jobs.

sq.sq. is the short written form of square是square的書面縮寫 it does two jobs它有兩種用法

First, in measurements: sq. m means square metres, sq. ft means square feet, sq. km means square kilometres — the way we measure area, how much floor or land something covers. You will see it in房 adverts, on packaging, and in geography books: "a 90 sq. m apartment", "30 cm sq. tiles".

first第一 in measurements用在測量單位裡 sq. msq. m means square metres就是square metres平方公尺, sq. ftsq. ft means square feet就是square feet平方英尺, sq. kmsq. km means square kilometres就是square kilometres平方公里 the way we measure area這是我們量面積的方式 how much floor or land something covers也就是某樣東西佔多少地板或土地 you will see it in adverts你會在廣告裡看到, on packaging包裝上, and in geography books還有地理課本裡 “a 90 sq. m apartment”「a 90 sq. m apartment」, “30 cm sq. tiles”「30 cm sq. tiles」

Second, in addresses: Sq. with a capital S is short for Square, the name of an open public place in a city, as in Merrion Sq. or Trafalgar Sq.

second第二 in addresses用在地址裡 Sq. with a capital S大寫S開頭的Sq. is short for Square是Square的縮寫, the name of an open public place in a city指城市裡一個開放的公共場地的名字, as in Merrion Sq.像Merrion Sq. or Trafalgar Sq.或Trafalgar Sq.

It is a writing shortcut only — when you read it aloud, you say the whole word "square". The dot after it is optional and often dropped, especially in measurements: both 50 sq m and 50 sq. m are normal.

it is a writing shortcut only它只是書寫上的簡寫 when you read it aloud你唸出來的時候 you say the whole word “square”還是要唸整個字square the dot after it是它後面那個點 is optional and often dropped是可加可不加、常常被省略 especially in measurements尤其在測量單位裡 both 50 sq m and 50 sq. m are normal50 sq m和50 sq. m兩種寫法都很正常