high-usage group

例句：

1. 1. This group of students is highly skilled in mathematics.
   这组学生在数学方面非常熟练。
2. 2.The high-usage group is responsible for the maintenance of the library's records.
   高频使用组负责图书馆记录的维护工作。
3. 3.The high-usage group has been identified as a priority for future expansion.
   高频使用组已被确定为未来扩张的优先对象。