Not only has this reduced the time he has to spend at home and deprived him of the comforts of home and family; but also it has cut into the time he has habitually spent reading.
「完全弄得滾瓜爛熟是不太可能的，人難免會有疏漏之處，這時就給自己一個很好的警惕，知道自己該往某一點作更多的研究。