凤仙花坏死斑病毒
Impatiens necrotic spot virus
bit manipulation
黑腐病病斑
black rot lesion of cruciferous plant
银叶病病斑
Squash silver-leaf lesion
北半球春季
Spring of Northern Hemisphere
草地春季禁牧
forbidden grazing in spring grassland
春季草花
Herbaceous flower plants in spring