She was trailing in the race, but she was beginning to gain ground (on the leaders).比赛中她一度落后，不过她正开始赶上领跑者。

Alternative forms of energy are quickly gaining ground. [=becoming more popular or successful]各种能源替代形式正快速发展。

The company has been gaining ground on [=catching up with] its competitors.这家公司已经在赶上竞争对手。

The campaign is trying to make up ground by advertising heavily in key states.这项活动旨在通过在主要的州大做广告来占领市场。