hay

复数：hays过去式：hayed过去分词：hayed现在分词：haying第三人称单数：hays

make hay利用机会去赚钱

hay fever[医]枯草热；[医]花粉病

hit the hay[俚]睡觉，就寝

hay cutter切草机，割草机

1. The children snuggled down on the hay.
   孩子们舒适地蜷伏在干草上。
2. Make hay while the sun shines.
   [谚]把握时机；趁热打铁。
3. The men hit the hay early, in order to be out hunting at dawn.
   为了第二天破晓出去打猎，这些人很早就上床睡觉了。

Hay Fever, Hygiene, And Household Size
PROPHYLACTIC INOCULATION AGAINST HAY FEVER
Family structure, neonatal infection, and hay fever in adolescence
Increasing prevalence of hay fever and atopy among children in Leipzig, East Germany
Nasal challenge with ragweed pollen in hay fever patients. Effect of immunotherapy.
Austrian children living on a farm have less hay fever, asthma and allergic sensitization
IgE antibody measurements in ragweed hay fever. Relationship to clinical severity and the results of immunotherapy.
Usefulness of immunotherapy in patients with severe summer hay fever uncontrolled by antiallergic drugs.
Prevalence of hay fever and allergic sensitization in farmer's children and their peers living in the same rural community. SCARPOL ...
Atopy in childhood. I. Gender and allergen related risks for development of hay fever and asthma