He introduced himself.

他作了自我介绍。

《牛津词典》

He introduced himself as Jimmy and said his parents wanted to see me.

他介绍自己叫吉米，说他父母想见我。

youdao

He introduced himself to us at the meeting.

他在会上向我们作了自我介绍。

youdao

He introduced himself as Wentworth Caswell -- Major Wentworth Caswell -- from "a fine southern family."

VOA: special.2010.06.12

He introduced himself as Wentworth Caswell - Major Wentworth Caswell - from "a fine southern family."

VOA: special.2009.01.17

Working as a photojournalist, he introduced himself as an ex-soldier to US marines guarding the relic and asked if he could take a piece of it.

BBC: Nigel Ely with the toppled statue

When he introduced himself to the American public he used to start most of his speeches with a quip about how his wife was really the boss and would not let him run for office unless he quit smoking.

BBC: Washington diary: Political humour

What was positive was this: Zwelish owned his apartment, the basement of a co-oped town house, and made a living consulting on business software these facts Blondy got out of Alan Zwelish, semi-voluntarily, the first time he introduced himself, on Seventy-eighth Street.

NEWYORKER: Lucky Alan