natural catastrophes短语¹³¹⁶²⁰⁺³ 基本例句 🌏自然灾害 Dormancy may ensure that the species can survive natural catastrophes, decrease competition between individuals of the same species, or prevent germination out of season. 这种特性能够确保物种在恶劣的环境中存活，减少同一物种中个体之间的竞争，以及防止种子在不适宜的季节萌发。 chinbullbotany