看见开阔的草原，小马驹欢快地飞奔起来。

The young pony started to ___gallop happily when it saw the open grassland.

自从采用了新技术，公司的业务发展突飞猛进。

The company's business has ___grown rapidly since adopting the new technology.

马儿突然加速，开始飞奔起来。

The horse suddenly sped up and broke into a ___gallop.