预兆

wū yún shì xià bào yǔ de yù zhào

乌云是下暴雨的预兆。

Dark clouds foreshadow heavy rain.

nǐ jué de zhè shì mǒu zhǒng yù zhào ma

你觉得这是某种预兆吗？

Do you think it's an omen?

rén men cháng shuō tīng dào wū yā jiào shì bù hǎo de yù zhào

人们常说听到乌鸦叫是不好的预兆。

It is often said that hearing a crow is a bad omen.

shùn lì de háng hǎi shì háng kōng de hǎo yù zhào

顺利的航海是航空的好预兆。

The maritime passage was a good augury for the aerial passage.