1) insist on doing 堅持做E.g.Ethiopians insist on doing things their own way.[MSN]: Ethiopia offers unique travel experience
2) keep doing E.g.At the same time, we have to keep doing everything we can to accelerate this recovery.WHITEHOUSE: President Obama on September, 2010 Jobs Numbers
3) persist in doingIf you persist in doing something, you continue to do it, even though it is difficult or other people are against it. 堅持; 執意例：Why do people persist in begging for money in the street?為什麼人們非要在街上討錢呢？例：He urged the United States to persist with its efforts to bring about peace.他敦促美國堅持努力實現和平。
有多種表達方式:
1) insist on doing 堅持做E.g.Ethiopians insist on doing things their own way.[MSN]: Ethiopia offers unique travel experience
2) keep doing E.g.At the same time, we have to keep doing everything we can to accelerate this recovery.WHITEHOUSE: President Obama on September, 2010 Jobs Numbers
3) persist in doingIf you persist in doing something, you continue to do it, even though it is difficult or other people are against it. 堅持; 執意例：Why do people persist in begging for money in the street?為什麼人們非要在街上討錢呢？例：He urged the United States to persist with its efforts to bring about peace.他敦促美國堅持努力實現和平。