seasonality
noun [ U ] uk/ˌsiː.zənˈæl.ə.ti/ us/ˌsiː.zənˈæl.ə.t̬i/
季节性
the fact that something changes according to the seasons
The seasonality of the tourist industry makes it difficult to find a permanent job in the town. 由于旅游业的季节性，要在这个镇上找到一份固定工作十分困难。