specialist sub-group的用法和样例：
例句
- Patents and trade marks shall be assessed by a group of experts and confirmed by the Chinese side.
专利和商标应由专家小组估价并经中方确认。 - The Expert Group of the IEF should use this work to arrive at a common long-term view on what price range would be consistent with the fundamentals.
国际能源论坛的专家小组应当努力就什么样的价格区间能与基本面因素保持一致达成长期共识。
