phase1/fez; feIz/n [C] one part of a process 阶段﹔时期: +of the first phase of the project 计划的第一阶段The new drug is still in the experimental phase. 这种新药尚处于实验阶段。
phase2v phase sth in phr v to gradually start using a new system, law etc 逐步使用〔新制度﹑法律等〕: Regular homework is phased in as children approach high school age. 随着孩子们接近上高中的年龄﹐逐步引入定期的家庭作业。phase sth out phr v to gradually stop using or providing something 逐步停止使用[提供]﹔逐步淘汰: All tax relief on company cars will be phased out. 公司汽车的所有税款减免将逐步取消。