她的专长是心胸外科手术，这是一个高度复杂的医学领域。

Her ___specialty is cardiothoracic surgery, a highly complex field of medicine.

这家精品店的特色是使用本地采购的材料制作的手工皮具。

The boutique's ___specialty is handcrafted leather goods made from locally sourced materials.

虽然这所大学提供广泛的课程，但其公认的特色专业是航空航天工程。

While the university offers a wide range of programs, its acknowledged ___specialty is aerospace engineering.