onetime

She is a onetime champion who has since retired.

用法提示：形容词“onetime”修饰“champion”，表示“曾经的”。

The onetime actor now works as a teacher.

用法提示：形容词“onetime”修饰“actor”，表示“从前的”。

He was a onetime ally, but they had a falling out.

用法提示：形容词“onetime”修饰“ally”，表示“一度的”。