The league is divided into two skill levels in order to even out the competition.联合会按能力分成两个级别，旨在均衡竞争。Each student is required to complete two science projects.每个学生需要完成两个科学项目。Can you give me a dime for two nickels?你能给我把一角钱兑换成两个五分币吗？ They formed two teams, leaving one odd player.他们组成两个球队，多出一位运动员。