求助！英文翻译 ：国际贸易自20世纪20～30年代萌芽、40～50年代创立到现在，已经历了将近一个世纪

问题描述：

问题解答：

the international trades has lasted for almost one century,it passed through the budding period in 1920~1930 and the establishment period in 1940-1950.

楼主 国脊贸易早在政和下西洋就开始了
修改一下中文 该补的补上 是指 国贸易学科吗

International trade since the 20th Century 20 ~ 1930s infancy, the creation of 40 to 50 up to now, have gone through almost a century