形容词
1. first的意思
1. If you send your letter first class your parents will receive it tomorrow afternoon.
要是你按第一类邮件寄，你的父母明天下午就能收到了。
2. Sunday is the first day of the week.
星期日是每周的第一天。
副词
1. First we'll have breakfast, then we'll walk to school.
我们首先吃早饭，然后步行去学校。
2. He said he would resign first.
他说他宁愿辞职。
名词
1. He will be a safe first.
他将会稳拿冠军。