Youth League的意思？

Youth League的音标：Youth League的英式发音音标为：[ju:θ li:ɡ]Youth League的美式发音音标为：[juθ liɡ]...

I have heard of his having joined the Youth League.我听说他已参加青年团.I'll never forget the day when I joined the Youth League.我永远不会忘记我入团的那一天.Educated by the Youth League, she has made rapid progress.在青年团的教育下, 她进步很快....