Zhè zhāng zhuānjí de zhǔdǎ gē hóngbiàn le quánguó.
The title track off that album was a hit across the country.
Tips
grammar
Usually sits in front of a noun: 主打歌 the title track, 主打产品 the flagship product. It also takes an object like a verb (这家店主打火锅), a newer use that has become standard in food and retail talk.
