一名11岁的男孩在不列颠哥伦比亚省失踪了三个星期,引发了寻找他的广告牌宣传运动。 An 11-year-old boy has been missing in British Columbia for three weeks, prompting a billboard campaign to find him.

在不列颠哥伦比亚省发起了一项广告牌运动,以帮助找到一名失踪三周的11岁男孩。 A billboard campaign has been launched in British Columbia to help locate an 11-year-old boy who has been missing for three weeks. 当局尚未公布有关他失踪情况的细节,但该运动的目的是提高公众认识和鼓励提示。 Authorities have not released details about the circumstances of his disappearance, but the campaign aims to raise public awareness and encourage tips. 这项工作包括在该区域各地举办大规模展览,以向广大受众进行宣传。 The effort includes large-scale displays across the region to reach a wide audience.