They began to lose ground.

他们开始失势。

IBM lose ground and dip into red again.

IBM的股价失守，再度探底。

I think we will continue to lose ground.

我想我们会持续衰败的。

He may lose ground occasionally. He may even fail.

有时他或许会失利甚至失败。

The team began to lose ground because Phil's leg was broken.

由于菲尔的腿摔坏了，这个队开始失利。