鲍勃起劲地吃着。Bob ate lustily.他起劲地工作,几个小时就干完了.He ploughed into his work and finished it in a few hours.我们正在愉快地交谈, 她却起劲地加了进来,说些没人爱听的话.We were enjoying a pleasant conversation , until she sailed in with her unpleasant remarks....