expand in

例句：

1. 1. The company plansto expand its operations in the next fiveyears.
   该公司计划在未来五年内扩大其业务。
2. 2. The ocean is expanding due to globalwarming.
   由于全球变暖，海洋正在扩张。
3. 3. The teamexpanded their knowledge of the subjectby attending the conference.
   通过参加会议，团队扩展了他们对主题的知识。