基本解释n.延长；持久同根派生 英汉例句双语例句With lastingness of infection, the productive rate of reactive oxygen species decreased gradually, and photosynthesis also weakened.随着感染时间的不断延长，活性氧的产生速率逐渐降低，同时光合作用逐渐减弱。专业释义经济学耐久