Uppercase Letter

定义
Uppercase letter指的是大写字母，通常用来表示句子的开始、专有名词、缩略语或某些语法结构中的强调。与小写字母（lowercase letters）相对，大写字母通常在书写时具有更高的高度，且常用作书写中的格式区分。

音标
/ˈʌpərˌkeɪs ˈlɛtər/

翻译
大写字母

读音
Uppercase: /ˈʌpərˌkeɪs/
Letter: /ˈlɛtər/

用法

句首大写：在英语中，句子的第一个字母通常是大写的。
例如：The cat is on the mat.

专有名词大写：人名、地名、品牌名等专有名词的首字母通常大写。
例如：John is from Paris.

缩写词：很多缩写词通常使用大写字母。
例如：USA, NASA, FBI

强调：有时为了强调某个词或短语，可以使用全大写字母，尤其是在非正式书写中。
例如：I told you to STOP!

标题或文章标题中的大写字母：在标题写作中，通常使用大写字母来突出主要词汇。
例如：The Great Gatsby

例句

She wrote her name with an uppercase letter at the beginning.

Always start a sentence with an uppercase letter.

In English, we use uppercase letters for the names of countries.

The abbreviation for "Federal Bureau of Investigation" is written in uppercase letters: FBI.

The title of the book is written entirely in uppercase letters for emphasis.

Can you please write your address with the first letter in uppercase?

My password includes both lowercase and uppercase letters for security.

In legal documents, certain words are often written in uppercase to give them special importance.

I accidentally typed the whole email in uppercase letters.

When writing a formal letter, make sure to use an uppercase letter at the start of each paragraph.

短语搭配

Uppercase letter / lowercase letter

Capital letter

All uppercase

Uppercase format

Write in uppercase

Uppercase and lowercase

Start with an uppercase letter