poster child

1. N-COUNT If someone is a poster child for a particular cause, characteristic, or activity, they are seen as a very good or typical example of it. 榜樣[美國英語]

Zidane has become the poster child for a whole generation of French-born youths of North African extraction. 齊達內已成爲法國出生、北非血統的一整代青年的榜樣。