赌博真的很看运气。

Dǔbó zhēnde hěn kàn yùnqì.

Gambling really depends on luck.

我们没有预约，只是路过碰碰运气看餐厅有没有位子。

Wǒmen méiyǒu yùyuē, zhǐshì lùguò pèngpeng yùnqì kàn cāntīng yǒu méiyǒu wèizi.

We didn’t have a reservation—we just stopped by to see if the restaurant had a table.

这是个运气不错的机会。

zhè shì gè yùnqì bùcuò de jīhuì.

This is a good opportunity.