vitamin K 1
vitamin-k-1的词性：
n.（名词）
1. A yellow viscous oil, C31H 46O 2, found in leafy green vegetables or made synthetically, used by the body to form prothrombin and in veterinary medicine as an antidote to certain poisons.
维生素K1：一种黄色粘胶状油，C31H 46O 2，存在于叶绿蔬菜中或合成制造，用于形成凝血酵素，在兽医上用作几种毒药的解毒剂