落后于

In this special field she is facile princeps, and has left all competitors behind.

这一特领域里她是出类拔萃的, 并使所有的竞争者都于她。

Britain's economic development must lag behind that of almost every other industrial nation.

英国的经济发展肯于几乎所有的其他工业国。

We are lagging far behind our European competitors in using new technology.

们使用技术方面远远于们的欧洲对手。

I was in retard of them in real knowledge.

际知识方面于他们。

The building work is now behind schedule, but contractors are confident that they can make up for lost time.

这项建筑工程目前于预计划，但是承包人有信心把失去的时间补回来。