a very short period of time 顷刻；瞬间 Word Originlate 19th cent.: abbreviation of moment.
Idioms
(the) big mo
- (especially North American English, informal)
the ability to keep moving ahead of your competitors, especially in politics 保持领先竞争对手的能力，尤其是在政治领域 In politics, momentum is known as the big mo. 在政治上，气势被称为大mo。 He's picking up a lot of support and has the big mo. 他得到了很多支持，并且有很大的潜力。