poster child
代表
例句与用法：
The poster had been ripped to pieces.
那张广告画已被撕得粉碎。
The lettering on the poster is very eye-catching.
海报上的字体非常醒目。
The poster only stayed up a few hours, before it was stolen.
那张海报贴上去没几个小时就让人给偷走了。
The poster wouldn't stick even though I drenched it with glue.
我涂了大量胶水，可那张海报就是贴不住。
Have you seen their poster?
你看到他们的广告牌了吗？
Her bedroom is covered with posters.
她的卧室里满是画片。
He put up a poster advertising the circus.
他贴了一张宣传马戏团的海报。
详细释义：
n.
在一个慈善团体所张贴的广告上的小孩; 作为范例的人或物