In 1941 a standard code for commercial telecasting in the United States was adopted.
1941年,美国采用商业电的标准规范。
In 1941 a standard code for commercial telecasting in the United States was adopted.
1941年,美国采用商业电的标准规范。
声明:以上例句、词性分类均由互源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。