preparatory period
英
美
- period n.一段时间;周期;时期;课时;学时;句号;月经
- preparatory adj.预备的;准备的;初步的n.预备学校;预科(在美国指为升入大学做准备的学校)
- After being examined for a probationary period of one year, he finally became an official member of the Communist Party.
经过一年的预备期考察,他终于被批准转正了!