roup choice群选择
Nordg roup诺德集团公司
Pre Roup比粒寺
testg roup试验组
nutritional roup营养性鸡白喉
diphtheritic roup白喉性感冒
canker roup坏疽性白喉
g roup object组对象
N（名词） any of various chronic respiratory diseases of birds, esp poultry 鸟类(尤指家禽)慢性呼吸道疾病 [vet science]