developmentalKK [dɪˏvɛləpˋmɛntəl] /dɪˌvɛləpˈmɛntəl/发音形容词1发展的、发展上的The city is still at a developmental stage of its transport network.这座城市的交通网路仍处于发展阶段。2发育的、成长的医学、心理Doctors assess whether the child has reached key developmental milestones.医生会评估孩子是否达到重要的发育里程碑。3研发的、开发阶段的The engine is still developmental and not ready for production.这具引擎还在研发阶段,尚未能量产。用这个字练口说→