Definition: to increase in something such as size, weight, or amount Level: B1
她冬天体重增加了五公斤。
She ___gained five kilograms over the winter.
自行车手在下坡时加快了速度。
The cyclist ___gained speed on the downhill slope.
通过练习，他在公开演讲方面获得了信心。
Through practice, he ___gained confidence in public speaking.
