apply to

1make a formal request to sb or an organization向某人或某机构提出请求

I shall apply to the manager for an increase in pay.我将请求经理给我增加工资。

She has applied to the American Consulate for visa.她已向美国领事馆申请签证。

2be fit forbe suitable for适用于;适合

School regulations apply to every student.校规适用于每个学生。

3bring or put into use实施;应用

We should apply theory to practice.我们应该把理论应用于实际。