直到1970年代中期，工程师们才发现将网络合并进而创建互联网的一种方法。

It wasn't until the mid-1970s that engineers developed a way to merge networks to create the Internet.

youdao

直到1970年代中期，工程师们才发现将网络合并进而创建互联网的一种方法。

It wasn't until the mid-1970s that engineers developed a way to merge networks to create the Internet.

youdao