英汉词典

1. 一年一度的;每年一次的
    A yearly event happens once a year or every year.

    e.g. The seven major industrial countries will have their yearly meeting in London.
           7个主要工业国家将在伦敦举行一年一度的会议。

2. 年度的;一年的
    You use yearly to describe something such as an amount that relates to a period of one year.

    e.g. In Holland, the government sets a yearly budget for health care.
           在荷兰，政府会制定医疗保健部门的年度预算。