earmark -------- 1.特征（名词）；2. 预留（及物动词）

英文释义
1. (noun) A characteristic feature or quality that clearly identifies something.
2. (transitive verb) To set aside something, especially money in a budget, for a particular purpose.

例句
The ambitious, handsome, and talented young singer had all the earmarks of success as a popular musician in the future.
这位天才青年歌手雄心勃勃、相貌英俊，有成为未来成功流行音乐人的一切特征。
Every year I earmark a percentage of my salary for my vacation.
每年，我会预留出一部分工资，用于度假。