social network site的用法和樣例：
例句
- Burberry, the famous fashion brand, is to launch its own social networking site next month, to deepen its relationship with customers.
時尚品牌巴寶莉下月將推出自己的社交網站，希望此舉能夠加深與顧客之間的聯繫。 - There have been a number of articles recently about the challenges big social networking sites have faced in monetizing their audiences.
最近有很多文章是關於大型社交網站在轉化利潤中遇到的挑戰。
