s. most important element
n. 领袖, 酋长, 长官, 主要部分
a. 主要的, 首位的
1. The chief of the tribe made an important decision.
部落的首领做出了一个重要决定。
2. She is the chief engineer of the project.
她是这个项目的首席工程师。
3. The chief reason for his success is hard work.
他成功的主要原因是努力工作。