momentum /moʊˈmɛntəm/ noun Learner's definition of MOMENTUM
[noncount]
1
a : the strength or force that something has when it is moving冲力 b : the strength or force that allows something to continue or to grow stronger or faster as time passes势头;动力 -
The company has had a successful year and hopes to maintain its momentum by introducing new products.这家公司今年业绩很好,希望通过引进新产品保持这一势头。
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The campaign slowly gained/gathered momentum. [=the campaign slowly became more popular and successful]运动的声势越来越大。
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The movie loses momentum toward the end.这部电影快结尾时失去了劲头。
2
physics : the property that a moving object has due to its mass and its motion动量