做科学研究不容易，不仅需要时间、精力和经费，还需要具有自制力和奉献精神。
It is not easy to do scientific research it requires time, energy and money as well as discipline and commitment.
做科学研究不容易，不仅需要时间、精力和经费，还需要具有自制力和奉献精神。
It is not easy to do scientific research; it requires time, energy and money as well as discipline and commitment.
作科学研究不容易，不仅需要时间、精力和经费，还需要具有自制力和奉献精神。
It is not easy to do scientific research; it requires time, energy and money as well as discipline and commitment.
就这两句做科学研究不容易，不仅需要时间，精力还有经费，还需要自制力和奉献精神。
It is not easy to do scientific research, it need not only time, energy and outlay but also self-restraint and dedication.
就这两句做科学研究不容易，不仅需要时间，精力还有经费，还需要自制力和奉献精神。
It is not easy to do scientific research, it need not only time, energy and outlay but also self-restraint and dedication.
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