I am primarily interested in history.我主要对历史感兴趣。
This building was primarily intended to be an assembly hall.这个建筑物最初准备作为一个会议厅。
He was many things, but he was primarily a general.他身兼多职,但首先他是一位将军。
Study is the matter of primarily importance.学习是头等重要的事。

［同义词］   chiefly, firstly, mainly, originally
［反义词］   secondarily