小浪花跑两会丨农业使用无人机全世界最多，第二场部长通道谈到这些热点

Use 在 + location + 举行 to say where an organized event takes place. The subject is often an activity or meeting and the location follows 在. This is common for meetings, conferences, and ceremonies.

Use 出席 to say that a person attended an official activity, meeting, or ceremony. The people come before 出席 and the event can be implied or stated afterwards.

回应 + noun means to respond to something such as concerns, questions, or requests. It is often used in media or formal contexts to report how officials reply to public issues.

Use 全世界最多 (or 最 + adjective) to express that something is the most in the world. It emphasizes the highest degree for a quantity or quality.

谈到 + topic means “talk about” or “mention” a certain subject. It is a useful way to introduce what someone said or what an event is focusing on.