essential goal的用法和樣例：
例句
- The primary goal of the study was to determine the safety and tolerability of the new therapy.
研究的基本目標是確定新療法的安全性和耐受性。 - Constructing the NFP system is considered as a basic goal of building a well-off society in an all-round way.
摘要構建全民健身體系是全面建設小康社會的一個基本目標。
