He has carried out extensive research into renewable energy sources.
他已经对再生能源进行了广泛研究。
The research was carried out on a modest scale.
这个研究项目开展的`规模不算太大。
The experiments were carried out under simulated examination conditions.
试验是在模拟的情况下进行的。
Carry on the good work!
干得不错，继续努力吧！
She ignored him and carried on with her work.
她没理他，继续干她的活。