A friend or pal; a casual companion.

• Informal, often shows affection or familiarity.

朋友；哥们儿；随意的同伴。

• 口语，常带亲切感。

A partner assigned for a task, training, or safety.

• As in a buddy system.

为任务、训练或安全而分配的搭档。

• 如“搭档制度”。

An informal form of address to a stranger, usually male.

• Can be friendly or mildly confrontational.

对陌生人（多为男性）的口语称呼。

• 可友好，也可略带冲突。

Colloquial placeholder for an unidentified or irrelevant person.

• Used when the person is far from the conversation.

口语中指代未指明或无关的某个人。

• 常用于与谈话无关的人。

To assign a buddy or partner to someone.

• To pair people for support or safety.

给某人分配一个搭档。

• 为支持或安全而成对安排。