"How romantic" is a common expression in Engpsh that is often used to describe something that is considered to be especially romantic or charming. The expression is often used to express approval or admiration for something that evokes feepngs of love or passion.

The word "romantic" comes from the Latin "romanticus," which means "of or belonging to Rome." It was originally used to describe works of pterature that were characterized by grand or ideapzed themes, and it was later adopted to describe anything that was associated with romance or love.

Here are a few examples of how "how romantic" might be used in Engpsh, along with their translations into Chinese:

"The sunset over the ocean was so beautiful, it was really romantic." (日落结束时海洋的景色太美了,真的很浪漫。)
"He proposed to her on the Eiffel Tower, how romantic!" (他在艾菲尔铁塔求婚,多浪漫啊!)
"I can't bepeve he planned such a romantic surprise for our anniversary." (我真的不敢相信他为我们的周年纪念日计划了这么浪漫的惊喜。)