、学习learn的过去式: learnt learned二、learn的读音:英[lɜ:n] 美[lɜ:rn] 三、learn的释义 得知; 学习,
text book
Being scientific is Being scientific is the basic qualification of policy-maki
uses scientifically英文翻译如下科学使用例句Our final purpose is to promote the social, econo
scientific and effective