pride oneself on upon 以…自豪
in principle(=only in regard to the main idea)原则上
prior to(=before)在…之前
in private(=privately)私下，秘密地;in public 公开地
proceed from(=arise from，result from)由…发出，由…引起(产生)
proceed with(=begin and continue sth.)继续进行
in progress(=in the state of be done)进行中
prohibit…from(=forbid)禁止，阻止
in proportion to 与…成比例
protect…from 阻止..不受，保护不受
be proud of 为…自豪
provide for 为…做准备