Sen. is the written short form of Senator, used before a name, especially in American newspapers and in Congress: a member of the Senate. You write it with a capital S and, in American style, a period.

Sen. is the written short form of Senator 是 Senator（參議員）的書面縮寫，used before a name 用在人名前面，especially in American newspapers and in Congress 尤其常出現在美國報紙和國會裡：a member of the Senate 也就是參議院的成員。with a capital S 用大寫的 S and, in American style, a period 而且美式寫法會加句點 you write it 你要這樣寫

When you read it aloud, you say the full word “Senator”; you do not say “Sen.” Other countries with a senate — Australia, for example — use the same short form in print.

when you read it aloud 唸出來的時候，you say the full word 'Senator' 你會唸完整的「Senator」；you do not say 'Sen.' 而不是唸「Sen.」。Australia, for example 比如說澳洲 other countries with a senate 其他有參議院的國家 use the same short form in print 印刷上也用同樣的縮寫

Though actually, sen without the capital can be other things in other places, such as a small coin, and Sen. is not Sr. (senior, father and son) or St. (saint or street).

without the capital 不用大寫的時候 sen can be other things in other places 這個字在別的地方可能是別的東西，such as a small coin 像是一種小額硬幣。and Sen. is not Sr. (senior, father and son) 而且 Sen. 不是 Sr.（表示「資深」、父子同名的那個 senior），or St. (saint or street) 也不是 St.（聖…或…街）

This entry is only the politician.

this entry is only the politician 這篇條目只講政治人物的用法

The word feels official and newspaper-like. Friends do not abbreviate each other this way.

the word feels official and newspaper-like 這個字給人的感覺很正式、很像報紙用語。friends do not abbreviate each other this way 朋友之間不會用這種縮寫稱呼彼此