1·You have to be very quick to get an infield Homer.
必须要跑得很快才能打一个内场本垒打。
2·The field is divided into an infield and an outfield.
棒球场分为内场和外场。
3·Melky Cabrera sacrificed and Miguel Cairo legged out an infield single to put runners at the corners with one out.
牛奶牺牲触击(译注：使肯诺上三垒)，开罗又跑出了一个内野安打使得现在一出局一、三垒有人。
4·How to settle soil salinization is an urgent and important task in our age which haunted by increasing population, decreasing infield and lacking of fresh water.
在人口不断增加，耕地日趋减少和淡水资源不足的情况下，如何解决土壤盐渍化问题已成为一个迫切需要解决的重大课题。