央

例句：

1. 1.The city is located at the center of the country.
   这个城市位于这个国家的中心。
2. 2. The meeting was held at the center of the room.
   会议在房间的中央举行。
3. 3. The team's performance was their core strength.
   团队的表现是他们的核心优势。