It is said that about 1,000 students will compete in the sportsmeeting.
据说大约1,000名学生将参加运动会。

With which team did they compete for the gold medal?
她们和哪一个队争夺金牌?

You can build your own company and compete with/against othercompanies.
你可以创建自己的公司并且和其他公司竞争。