seasonallyadv.季节性地
seasonaladj.季节的;依照季节的;周期性的
seasonal thermocline季节性温跃层
seasonal decorations圣诞节装饰品
seasonal parturition季节性分娩
seasonal rain forest季节性雨林
seasonal hay-fever季节性枯草热; 花粉症
seasonal maintenance季节性维护
seasonal fluctuation季节性波动,季节性动摇,季节变化
seasonal polyoestrus季节性多次发情