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.
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。
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