in phrase to cross (or pass) the Rubicon "take a decisive step," 1620s, a reference to a small stream to the Adriatic on the coast of northern Italy which in ancient times formed part of the southern boundary of Cisalpine Gaul; crossed by Caesar Jan. 10, 49 B.C.E., when he left his province to attack Pompey. The name is from Latin rubicundus "ruddy," in reference to the color of the soil on its banks.
实用例句
1. Today we cross the Rubicon . There is no going back.
今天我们要破釜沉舟，背水一战了。
来自《权威词典》
2. He's crossed the Rubicon with regard to the use of military force as an option.
他已经下定决心使用武力。
来自柯林斯例句
3. At last they came to a little river called the Rubicon.
最后,他们来到了一条叫做卢比孔的小河边.
来自互联网
4. The Rubicon once crossed, they set to work with a will.
事已定局, 他们就起劲地干了起来.
来自互联网
5. He Rubicon when he handed in his resignation letter.
