during

prep.

在…的时候；在…期间，当…之时；其间；

1. He swims every day during the summer.
   他夏天每天游泳。
2. The thief broke into the house during the night.
   小偷在夜间破门进入住宅。
3. He was born in China during World War II and educated in England.
   他在二次大战期间生于中国,后来在英国受。

Telomeres shorten during ageing of human fibroblasts
Reduction in cardiovascular events during pravastatin therapy
Epigenetic differences arise during the lifetime of monozygotic twins
Cleavage of Structural Proteins during the Assembly of the Head of Bacteriophage T4
Dynamic Mapping of Human Cortical Development during Childhood through Early Adulthood
Micro-RNA Regulation of the Mammalian lin-28 Gene during Neuronal Differentiation of Embryonal Carcinoma Cells
Requisite role of angiopoietin-1, a ligand for the TIE2 receptor, during embryonic angiogenesis.
Vascular endothelial growth factor mediates angiogenic activity during the proliferative phase of wound healing
Inhibition of myocardial injury by ischemic postconditioning during reperfusion: comparison with ischemic preconditioning.
Survival Effect of Maximal Cytoreductive Surgery for Advanced Ovarian Carcinoma During the Platinum Era: A Meta-Analysis