... keep a firm hand 牢牢地控制着 kept a firm hand on严密地控制 keep a firm hand on 牢牢控制 ; 紧紧控制 ...
双语例句
1
He keptafirm hold on her hand as he helped her across the river.
他在帮她过河时紧紧地抓住她的手。
2
In my opinion, I was a useless girl in that situation. But on the other hand, it left a deep impression on me to be a good doctor. I kept it in my mind and set a firm dream.