____ ____, your pronunciation is quite good.
3200000000=____亿
– Would you mind my closing the window, please?
– _______. We need some fresh air.
①张元济开创了中国近代出版业 ②詹天佑开创了中国的铁路交通事业③张謇被人们称为 “状元实业家” ④夏瑞芳在北京创办了商务印书馆
—Thanks a lot.
