It is a movement building steady momentum: a call to make research data, software code and experimental methods publicly available and transparent. 一场保持着稳定发展势头的运动
Holidaymaking is gaining momentum among Chinese as their living standards rise.随着生活水平的提高，度假在中国人生活中的作用越来越重要。
They began to lose momentum in the second half of the game. 在比赛的下半场，他们的势头就逐渐减弱。
The wheel was allowed to roll down the slope, gathering momentum as it went. 那轮子沿着斜坡向下滚动，速度越来越快。