gain on

• • 逼近，追上(被追逐的人、物)：

    The horsemen were rapidly gaining on their enemy.

    骑兵们迅速追上了敌人。

  • 胜过，超过(某物)；跑得较…快：

    It is impossible for a small company to gain on the big firms while business is so inactive.

    商业是如此的萧条，小公司不可能超过大公司。

  • (海洋)逐渐侵蚀(陆地)，冲刷：

    The sea has been gaining on the east cost of England for many years.

    多年来，海洋一直在侵蚀英国东海岸。