他的音乐作品将内心的孤独感具象化地表达了出来。

His music ___externalized the deep loneliness he felt inside.

她把自己的焦虑外化，总是抱怨周围环境不安全。

She ___externalizes her anxiety by constantly complaining about the unsafe surroundings.

为了专注于核心业务，公司将IT支持外包给了一家专业公司。

To focus on core operations, the company ___externalized its IT support to a specialized firm.