书籍 Face2face - 基础 - 单元 6 - 6D

used when we want to talk about a person or thing for the first time or when other people may not know who or what they are

一个, 一

used before a singular noun that starts with a vowel sound, when we are not talking about a specific person or thing

一个, 一个

used when referring to a person or thing that was previously mentioned or one that is identified easily

这个, 那个

a child's male parent

父亲

a person who deserves great admiration for their bravery or good deeds

英雄, 女英雄

a female member of a royal family, typically the daughter of a king or queen

公主

the main bad character in a movie, story, play, etc.

反派, 恶棍