她喜欢使用社交网站与朋友保持联系。

She enjoys using ___social ___networking sites to stay in touch with friends.

许多年轻人使用社交网络与他人建立联系。

Many young people use ___social ___networking to connect with others.

职业社交网络对职业发展很重要。

Professional ___social ___networking is important for career development.