单词	分期研究
释义	分期研究 period-based study研究
随便看	instrumento instrumento- instrument observation instrument occultation instrumentoes instrument of instrument of acceptance instrument of accession instrument of acquisition of goods and services Instrument of aggression instrument of agreement to sell instrument of appeal instrument of approval instrument of attention distribution instrument of certification instrument of circulation Instrument of colon therapy system instrument of commitment instrument of constant force writing instrument of credit instrument of credit control instrument of crime instrument of criticism instrument of dictatorship instrument of dissolved oxygen