I'd like to summarize the key points.

핵심 내용을 요약하겠습니다.

• Let me summarize the main points of today's presentation.
• I'd like to conclude that our product is reliable and the most inexpensive.
• So let me summarize where we are.
• Let me sum up what we have done this month.
• Let me briefly conclude my key points.
• I'd like to conclude my presentation by telling you a little story.
• Finally, I'll summarize the contents of my presentation, and conclude.