This is the 1976th most frequent Chinese word.
率先
"率先" means "to take the lead" or "to be the first."
率先 is used to indicate being the first among a group to accomplish something.
他在班上率先完成了作业。
He was the first in the class to complete the homework.
率先 shows priority or initiative in an action compared to others in the industry or field.
公司率先推出了新产品。
The company launched the new product ahead of others.
率先 emphasizes the achievement of a milestone before others.