major overhaul cycle

• 大修周期

major overhaul cycle的用法和样例：

例句

1. He is continuing his exploration of the molecular basis of cell cycle control in normal and cancer cells as an MPhil candidate at UST.
   他现于科大修读哲学硕士课程，研究正常及癌细胞的细胞周期控制的分子基础。