comer
/ˈkʌmə(r); `kʌmɚ/ n
1 person who comes (used esp as in the expressions shown) 来者（尤用於下列示例）
The race is open to all comers, ie Anyone may take part in it. 这项竞赛任何人都可参加.
Late-comers will not be allowed in. 迟到者不得入内.
2 (infml 口 esp US) person who is likely to be successful; promising person 可能成功的人; 有前途的人.