n. a sign of something about to happen
n. 预兆, 前兆, 征兆
vt. 预示, 有...的前兆, 显出...的预兆
1. The dark clouds were an omen of the coming storm.
暗云是即将来临的暴风雨的预兆。
2. She believed that breaking a mirror was a bad omen.
她相信打破镜子是一个坏的预兆。
3. Many people consider a black cat crossing their path to be an omen of bad luck.
许多人认为黑猫横穿他们的道路是坏运气的预兆。