He's still in that awkward phase of unreadiness and under preparation.

他当时还处于一种不愿展露文学才华的时期。

耶鲁公开课 - 弥尔顿课程节选

If I followed one of them it is in a phase that's called G1 first and this is a resting phase before it enters the process of synthesizing new DNA in preparation for another round of mitosis.

如果我们跟随一个细胞前进,首先进入G1期,这是一段静息期,之后进入,合成新DNA的S期,为下一轮有丝分裂做准备

耶鲁公开课 - 生物医学工程探索课程节选