What other similar idioms make the finishing point?

Expose the truth in a penetrating sentence.

Turning stone into gold-turning a rough article into a literary treasure

The icing on the cake

Make the finishing point _ word explanation _ dictionary

Pinyin: [n.j.]

Commentary: The original description of Zhang Sengyou, a painter in Liang Dynasty, is wonderful. When writing an article or speech in the future, point out the essence in a few words at key points to make the content vivid and powerful.