Ironically, Gould, Townes, or Schawlow never built the first working laser.

具有讽刺意味的是，古尔德，汤斯或肖洛从未制造过第一个工作激光器。

youdao

Many countries around the world never built full land-line phone systems; they jumped straight to cellular.

全世界许多国家从未建设过完整的座机电话系统；他们直接跳到了手机。

youdao

The two later became acquainted, and Wright even began designinga house for Rand, though it was never built.

后来两人逐渐相识，赖特甚至开始为兰德设计一座房子，虽然那所房子从未破土动工。

youdao

So the dymaxion house -- which could have provided low-cost housing for everyone -- was never built.

VOA: special.2010.05.30

The majority of the projects he designed were never built.

VOA: special.2009.12.13

Most such places are gone, torn down in old city neighborhoods, never built in carefully planned suburbs.

FORBES: Finding Sanctuary on Nine-Eleven

Obama has never built a business, created real wealth or produced tangible prosperity.

CNN: Commentary: Obama a one-term president?

It was almost a reality and perhaps the most ambitious design never built.

BBC: The landmark buildings that never were