essential goal的用法和样例：
例句
- The primary goal of the study was to determine the safety and tolerability of the new therapy.
研究的基本目标是确定新疗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.
摘要构建全民健身体系是全面建设小康社会的一个基本目标。
