PHRASAL VERB 扩大范围;拓展领域 If a person or an organization branches out, they do something that is different from their normal activities or work. 扩大范围;拓展领域 [Also VERBPREPOSITION]
I continued studying moths, and branched out to other insects. [VERBPREP. prep./adv.]
我继续研究飞蛾,并将研究范围扩展到其他昆虫。
ASEAN has branched out tentatively into the security business. [VERBPREP. prep./adv.]