expandoff expand on抑制
expand on a problem对某个问题加以阐述
To expand on上扩至
expand on sth阐述;翻译
My View on Expand我对扩招的看法
PHRASAL VERB（动词词组） If you expand on or expand upon something, you give more information or details about it when you write or talk about it. 更充分讲述; 进一步论述
The president used today's speech to expand on remarks he made last month.
总统利用今天的演讲进一步阐述了他上个月的讲话内容。