1. (尤指共患难的)朋友
    Your comrades are your friends, especially friends that you share a difficult or dangerous situation with.

    e.g. Unlike so many of his comrades he survived the war.
           和许多战友不同，他在战争中幸存下来。

2. 同志(社会主义者或共产主义者之间的称呼，尤其在会议中)
    Socialists or communists sometimes call each other comrade, especially in meetings.

comrade的解释

    e.g. The Party's authority, comrades, will be put to a serious test.
           同志们，党的权威将受到严重的考验。