托福閱讀長(zhǎng)難句:美國(guó)商業(yè)廣播節(jié)目
Their competition and collaboration werecreating the broadcasting industry in the United States, beginning with theintroduction of commercial radio programming in the early 1920s.
記憶單詞:
competition n.比賽
competitor n.參賽者
competent adj.有能力的
competence n.能力
collaboration n.合作
collaborate v.合作
commercial adj.商業(yè)的
commodity n.商品
理解句子:
此句結(jié)構(gòu)清晰,劃線部分為分詞作狀語(yǔ)。