①prevail 以......为准
②before 先于......
③ be senior to 优先于......
④Pre-emptive Right 优先认购权
⑤ Right of First Refusal 优先购买权
priority  n. 在先,居前优先,重点优先事项
Road building is a top priority.
筑路是最 优先考虑的事。
Maintaining stability is of top priority.
稳定压倒一切。
It was a matter of balancing priorities.
这是一个权衡轻重缓急的问题。
get one's priorities right
正确地安排某人的优先事项
Financial controls were given to priority.
他们把财务管理当成头等大事
女士优先:Ladies first
例句:舒适公寓中的单间,带屋顶阳台,不抽烟的职业人士,女士优先。Single room in lovely flat, roof terrace, non-smoking prof., woman pref.