/feɪz ||; fez/noun
[C] a stage in the development of sth (某事物发展的)阶段:
Julie went through a difficult phase when she started school.朱莉开始上学时经历了一段艰难的时期。
phase²
/feɪz ||; fez/verbphase sth in to introduce or start using sth gradually in stages over a period of time 分阶段引进;逐步实施:
The metric system was phased in over several years.公制分数年逐步推行。phase sth out to stop using sth gradually in stages over a period of time 分阶段淘汰,逐步取消:
The older machines are gradually being phased out and replaced by new ones.旧的机器正逐渐淘汰,由新的机器取代。