The allergy season is really several seasons. Trees start scattering their pollen in early spring, followed by grasses, and then ragweed kicks in during the summer and runs through fall.
过敏季节一般会有好几个月，首先是树开始在早春传播花粉，然后是草，接着就是豚草，它可以在整个夏天和秋天一直传播花粉。
The allergy season is really several seasons. Trees start scattering their pollen in early spring, followed by grasses, and then ragweed kicks in during the summer and runs through fall.
过敏季节一般会有好几个月，首先是树开始在早春传播花粉，然后是草，接着就是豚草，它可以在整个夏天和秋天一直传播花粉。
应用推荐