bow outvi phrasalphrasal verb, intransitive: Verb with adverb(s) or preposition(s), having special meaning and not taking direct object--for example, "make up" [=reconcile]: "After they fought, they made up."
figurative, informal (withdraw)
辞职,退休
恭敬地把(某人)送出 gōng jìng de bǎ ( mǒu rén ) sòng chū
Williams had to bow out of the race after suffering a leg injury.