feeder
- n. 支线；喂食器；奶瓶；饲养员；支流
考试真题
- One of the largest feeders for high school math competitions—including those that eventually lead to the IMO—is a middle school program called MathCounts.
出自-2017年6月阅读原文
- Another influential feeder for advanced-math students is an online school called Art of Problem Solving, which began about 13 years ago and now has 15,000 users.
出自-2017年6月阅读原文