The company's chief operating officer was the numero-uno fund-raiser for the event.
该公司的首席运营官曾是这个活动的最佳募捐者。
《柯林斯英汉双解大词典》
Remember, your father is still numero uno around here.
记住,你的父亲仍然是这里的头儿。
He was born on May 5, had five children and lived at 555 East 55 Street. At the track on his 55th birthday, he was surprised to find a horse named Numero Cinco running in the fifth race.