#催化化學性分解
#化學性分解聚合物
#改變材料特性
#調節生殖或生長
#Catalyze chemical breakdown
#Chemically break down polymers
#Modify material characteristics
#Regulate reproduction or growth
卵細胞的表層阻止多餘的精子 (Egg cell coating blocks extra sperm)
包圍卵細胞的外層迅速變硬以阻止多餘的精子
(Coat surrounding egg cell of mammals rapidly hardens to block extra sperm)
