With the acceleration of industrial growth came acute urban crowding and accompanying social stress--conditions that began to approach disastrous proportions when, in 1888, the first commercially successful electric fraction line was developed.是什么意思_With the acceleration of industrial growth came acute urban crowding and accompanying social stress--conditions that began to approach disastrous proportions when, in 1888, the first commercially successful electric fraction line was developed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句