许多dot-com公司通过网上销售取得了巨大成功。

Many ___dot-com companies have achieved great success through online sales.

许多程序员在互联网泡沫时期加入了初创公司。

Many programmers joined startups during the ___dot-com boom.

这家互联网公司是20世纪90年代典型的科技创业公司。

This ___dot-com was a typical tech startup during the 1990s.