expand on
US /ɪkˈspænd ɑːn/
UK /ɪkˈspænd ɑːn/
1.
详细阐述, 补充说明
to add more details or information to something that has already been said or written
:
•
Could you please expand on your last point?
您能详细阐述一下您的最后一点吗？
•
The speaker promised to expand on the topic in the next session.
演讲者承诺在下一节课中详细阐述这个话题。