debut
US /deɪˈbju/
UK /deɪˈbju/

1.
首次亮相, 初次登台
a person's first appearance or performance in a particular capacity or role
:
•
Her debut as a singer was a great success.
她作為歌手的首次亮相非常成功。
•
The new car model will make its debut at the auto show.
新車型將在車展上首次亮相。