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.
雙語例句
1. Today we cross the Rubicon . There is no going back.
今天我們要破釜沉舟，背水一戰了。
來自《權威詞典》
2. He's crossed the Rubicon with regard to the use of military force as an option.
他已經下定決心使用武力。
來自柯林斯例句
3. At last they came to a little river called the Rubicon.
最後,他們來到了一條叫做盧比孔的小河邊.
來自互聯網
4. The Rubicon once crossed, they set to work with a will.
事已定局, 他們就起勁地幹了起來.
來自互聯網
5. He Rubicon when he handed in his resignation letter.