Zidane became the poster child for a whole generation of French-born youths of North African extraction.齐达内已成为在法国出生、有着北非血统的年轻一代的模范人物。

She's a poster child for free speech.她是言论自由的代表人物。

The current national poster child is a tiny, freckle-faced redhead.现在的那个全国广告代言人个头不高, 红头发, 脸上有雀斑。