1. 在…旁边；沿着…的边；与…并排靠拢
    If one thing is alongside another thing, the first thing is next to the second.

    e.g. He crossed the street and walked alongside Central Park...
           他穿过街道，沿着中央公园走。
    e.g. Much of the industry was located alongside rivers.
           许多工厂都设在河边。

2. 与…一起
    If you work alongside other people, you all work together in the same place.

    e.g. He had worked alongside Frank and Mark and they had become friends...
           他与弗兰克和马克一起工作过，并且成了朋友。
    e.g. Men aged 60 are fighting alongside young boys.
           年届六十的男人们和少年小伙们并肩作战。

3. 与…同时（存在、发生）
    If one thing exists or develops alongside another, the two things exist or develop together at the same time.

    e.g. Her self-confidence will develop alongside her technique...
           随着她的技术不断提高，她会愈发自信。
    e.g. Alongside the Job Creation Programme they launched a Work Experience Programme.
           在开展创造就业项目的同时，他们还启动了工作经历项目。