今天我的运气很好！
jīntiān wǒde yùnqì hěnhǎo ！
My luck is very good today!
你需要一点运气来赢得比赛。
nǐ xūyào yīdiǎn yùnqì lái yíngde bǐsài 。
You need a bit of luck to win the match.
他总说运气是成功的重要因素。
tā zǒng shuō yùnqì shì chénggōng de zhòngyào yīnsù 。
He often says that luck is an important factor in success.