specialist sub-group的用法和樣例：
例句
- Patents and trade marks shall be assessed by a group of experts and confirmed by the Chinese side.
專利和商標應由專家小組估價並經中方確認。 - 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.
國際能源論壇的專家小組應當努力就什麼樣的價格區間能與基本面因素保持一致達成長期共識。
