1 do, did, does 强调动作的用词, I do care, he did come
Here: did foresee 的确预见到medium, mediabecome a force in making it so 成为实现这个预想的重要人物socially prominent passengers 有社会地位的乘客amateur 业余的，非专业的to make contact with ⋯与⋯联系gain fame 出了名subsidiary 子公司experimental stage 实验阶段 p217returns 报告书，情况反馈be mounted in ⋯安装入⋯aside from ⋯
= in addition to ⋯the profit derived from ⋯ 来自于⋯的利润receive national and universal attention 获得国内国际关注General Electric 通用电气公司patents专利join forces with ⋯ 与⋯联手pool vt
合伙，汇集，共享take over 接管wireless station 无线电广播电台went on the air 开始广播播音fully licensed commercial broadcasting station 营业执照齐全的商业广播电台a toll station 一家收费电台 p218air time 广播时段chain broadcasting 联播forerunner 先驱，排头兵bail out 原意“跳伞”，here: bail out of ⋯从⋯中脱身lease sth to sb 向⋯出租⋯
subsidiary 子公司，下属单位This launched an era of ⋯：( 这件事 ) 引发了一个
