"bill, placard, thing posted," 1838, from post (v.1). Poster boy/girl/child "someone given prominence in certain causes" is attested by 1990, in reference to fund-raising drives for charities associated with disability, featuring child sufferers, a feature since 1930s.
雙語例句
1. The current national poster child is a tiny, freckle-faced redhead.
現在的那個全國廣告代言人個頭不高，紅頭發，臉上有雀斑。
來自柯林斯例句
2. Washington looks like a poster boy for strength and athleticism.
華盛頓看上去是個典型的體魄強健、崇尚運動的人。
來自柯林斯例句
3. She went out with a Calvin Klein poster boy.
她和卡爾文·克萊恩品牌的一個廣告代言人談過戀愛。
來自柯林斯例句
4. This poster is offensive and degrades women.
這張海報冒失無禮，有辱女性尊嚴。
來自《權威詞典》
5. He is the poster child for incompetent government.