单词	incidence level
释义	incidence level 发病水平
随便看	principle of intersubjectivity principle of intimacy principle of intuition principle of invariable potential energy principle of invariance principle of investigation teaching Principle of Island-dividing principle of isokinetic motion principle of isolated element principle of isomerism principle of joy Principle of judge inalterable principle of judgment principle of judicial finality principle of justice principle of justice and fairness principle of just law principle of least utility principle of least work principle of justness principle of keeping secret principle of kindheartedness principle of knowledge principle of labor acquisition principle of laches