They include the PhiladelphiaOrchestra, the Baltimore Opera Company, the American Musical Theatre in San Jose, and a California food- and wine-appreciation outfit that collapsed with $78m in debts.
Expo organizers promise 20, 000 events around Shanghai, ranging from the PhiladelphiaOrchestra to the Cameroon National Song and Dance Troupe. Kids can see magic shows, puppet shows and shadow plays.
世博会的组织者承诺将在上海各地举办两万场各类活动，从费城交响乐团(Philadelphia Or chestra)到喀麦隆国家歌舞团(Cameroon National Song and Dance Troupe)，内容多种多样，还有供小孩子观看的魔术表演、木偶剧和皮影戏。