The role of an innocent artless young woman in a play.

　　戲劇中天真樸實(shí)的年輕女性角色。

　　The child asked many artless questions.

　　那小孩問了許多天真的問題。

　　The root system size and adventitious root diameter are various;

　　根系在大小和不定根直徑方面存在變異；

　　Study of test method of adventitious virus agent

　　病毒外源因子檢測方法的探討

　　Effect of Soil Water on Growth and Development of Primary and Adventitious Root of Winter Wheat

　　土壤水分對冬小麥初生根、次生根生長發(fā)育的影響