variant strain造句

例句与造句

1. With vvibdv and variant strains showed , it is very important to research of antigen and virulence of ibdv
   随着vvibdv和变异株的发现， ibdv的抗原变异和毒力研究变的尤为重要。
2. It's difficult to find variant strain in a sentence. 用variant strain造句挺难的