求翻译：2．在科学研究方面，基地应能承担各级各类对外汉语教学的重点和重大科研任务，在学科理论和与对外汉语教学有关的汉语本体研究中起组织和骨干作用。是什么意思？

2. In the area of scientific research, the base should be able to take focus and major scientific research level and type of teaching Chinese as a second task, in the theory and teaching Chinese as a foreign-related studies on ontology of Chinese organizations and key role to play in.