moment
I sat down for a moment to gather my strength.
我坐下片刻积蓄力量。
momentum
In physics, momentum is the mass of a moving object multiplied by its speed in a particular direction.
If a process or movement gains momentum, it keeps developing or happening more quickly and keeps becoming less likely to stop.
This campaign is really gaining momentum...
该运动的势头越来越猛。
build momentum
增强势头
gain momentum
势头增强
gather momentum
势头增强
have momentum
得势
lose momentum
势头减弱
maintain momentum
保持势头
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