hay与straw的区别

Question

为什么在裕兴版新概念第三册第30课中说straw是指动物睡觉用的干草，而http://www.cnki.com.cn/Article/CJFDTotal-YYZS199608020.htm中说hay是专门为牲口种的饲料,straw是指一般的稻草。

Answer 1

hay
n.干草；少量的钱；一种乡村舞蹈；成果，酬报
vt.把（草）制成干草；用干草喂
vi.割草晒干

straw
n.稻草；麦秆；吸管；毫无价值的东西
adj.稻草的，麦秆的；稻草[麦秆]做的；假的，假想的；无价值的

下面的CNKI的那条是正确的本回答被提问者采纳

Answer 2

I quote: California Straw builders Association, ‘Hays is for horses, straw is for houses’. Hay is a collective term of a mixture of plants like rye, alfalfa, clover etc. These plants were cut and dry using as animal feeds.
Straw are dried stems of grain like wheat and barley after threshing. Straw has much lower nutritional value. Because the stems are soft and hollow, it is used as bedding for animals and even human. Being hollow, straw is also a good insulator, therefore, can used as building material.追问

Yep.Thank you for answering my question.