She'sgotthebusinessofbuyingbirth?
She's got the iness of buying birthday presents down to a fine art. down to a fine art.是什么意思？
down to a fine art是指做一件事达到了一定程度的艺术高度.如同我们现在常说的踢足球踢成了艺术足球,巴西. He has played football down to a fine art.