发展的关键期 developmental period: 发育期critical period: 关键期; 关键时刻; 关键时期; 开键期; 临界期; 临界周期individual developmental period: 个体发育期intrauterine developmental period: 子宫内发育期sensitive developmental period: 敏感发育时期下载手机词典可随时随地查词查翻译