momentous business重大企业
momentous project重大工程
momentous s重大的;极重要的
momentous construction重大工程
Momentous Fall重大阵亡
momentous duty重大责任
momentous change极重要的改变
momentous projects重大工程
momentous times岁月峥嵘
ADJ（形容词） If you refer to a decision, event, or change as momentous, you mean that it is very important, often because of the effects that it will have in the future. 重大的
...the momentous decision to send in the troops.
…派兵的重大决定。