momentum
名词复数：momenta, momentums
词形变化：
同义词：
transient | fleeting | temporary | quick | brief | short | short-lived | transitory | passing | ephemeral | immediate | instant | abrupt | instantaneous | sudden | evanescent | impermanent | slippery | flying | mushroom | momentous | fugitive | momentaneous |
反义词：
agelong |
词义辨析：
同义:
n.动力; 力量
force
impetus
thrust
push