努力make an effort/efforts to do something; with one's best efforts
南south; southern part of China
历史process of the development of Nature and the human society; past records
句sentence; measure word for sentences
声调note; the tone of Chinese characters
成achievement; in considerable numbers or amounts
才talent; capable/talented person
熟悉know something or somebody well; be familiar with
经验experience; knowledge or skill obtained through practice
认真take seriously; conscientious