专门 + Verb + 了
专门 (zhuānmén) means "specially," "specifically," or "to specialize in," indicating a deliberate or dedicated effort toward something. It is placed before the verb to emphasize purposeful action. For example, 专门学了 means "specifically studied (it)."
我专门跑了一趟超市给你买的蛋糕。
Wǒ zhuānmén pǎo le yí tàng chāoshì gěi nǐ mǎi de dàngāo.
I made a special trip to the supermarket to buy you a cake.
她专门请了一天假去看牙医。
Tā zhuānmén qǐng le yì tiān jià qù kàn yáyī.
She specifically took a day off to go to the dentist.
这家店专门卖手工面包。
Zhè jiā diàn zhuānmén mài shǒugōng miànbāo.
This shop specializes in selling handmade bread.