seasonallyadv.季节性地seasonaladj.季节的；依照季节的；周期性的seasonal coefficient季节系数seasonal performance季节性性能Seasonal tax revenue季度税收seasonal compensatio季补偿seasonal restriction季节性限制seasonal frozen area季节性冻土seasonal tread model趋势季节模型seasonal correlation季节相关seasonal commodities季节性商品seasonal frozen soil季节性冻土