development kit开发工具箱developmentn.发展；开发；生长；进展；[摄]显影；新开发区developmental acalculia发育性计算不能development of software软件开发development of Shanghai上海城市发展development of teachers教师发展developmental condition发育条件development convergence发展收敛Development retardation发育落后development orientation发展定位development of morality道德的发展Development positioning发展定位