grass that has been cut and dried and is used as food for animals （用作饲料的）干草，草料 
a bale of hay 一大捆干草
Extra ExamplesTopics Farmingc1The children were playing in the hay. 孩子们在干草堆里玩耍。 The freshly harvested hay was taken into the hayloft. 刚刚收割下来的干草送进了干草棚。 They make hay to feed the cattle in winter. 他们晾晒干草冬天喂牛用。
Oxford Collocations Dictionary… of hay- bale
- cut
- harvest
- make
- …
- field
- meadow
- bale
- …
- in the hay
- (North American English, informal)
a small amount of money 少量的钱
Word OriginOld English hēg, hīeg, hīg, of Germanic origin; related to Dutch hooi and German Heu, also to hew.
Idioms
hit the hay/sack
- (informal)
to go to bed 上床睡觉 I decided to hit the sack and have an early night. 我决定上床睡觉，早早休息一晚。
make hay while the sun shines
- (saying)
to make good use of opportunities, good conditions, etc. while they last 趁有太阳时晒干草；抓紧时机；打铁趁热
a roll in the hay
- (informal)
an act of having sex with somebody 性交