mo·men·tous /moˈmɛntəs, mə-/
(a.)重大的,重要的
Mo·men·tous a. Of moment or consequence; very important; weighty; as, a momentous decision; momentous affairs. -- Mo*men*tous*ly, adv. -- Mo*men*tous*ness, n.
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momentous
adj : of very great significance; "deciding to drop the atom bomb
was a very big decision"; "a momentous event" [syn: big]