1. 肘
    Your elbow is the part of your arm where the upper and lower halves of the arm are joined.

    e.g. He slipped and fell, badly bruising an elbow.
           他滑倒了，一只胳膊肘严重擦伤。

2. 用肘推挤
    If you elbow people aside or elbow your way somewhere, you push people with your elbows in order to move somewhere.

    e.g. They also claim that the security team elbowed aside a steward...
           他们还声称保安人员将一位乘务员推搡至一边。
    e.g. Mr Smith elbowed me in the face...
           史密斯先生一肘撞在我脸上。

3. 跻身;挤掉;排挤
    If someone or something elbows their way somewhere, or elbows other people or things out of the way, they achieve success by being aggressive and determined.

elbow

    e.g. Non-state firms gradually elbow aside the inefficient state-owned ones...
           非国有企业逐渐挤掉了效率低下的国有企业。
    e.g. Environmental concerns will elbow their way right to the top of the agenda.
           环境问题将挤到议事日程之首。

4. to rub elbows with -> see rub