Twenty-firsts
num. 第二十一
🧩 词语组成解析
n. 一等品；一级品（first的复数形式）
🗣️ 情景例句
Don't laugh. In the beginner's class,they give you a chance to rest between exercises.
别笑。在初级课程中你有机会休息。
I went to bed at 11:30 p.m.
我在晚上11:30点睡觉了。
I can't promise anything.
我还不能作出任何承诺。