n.(名词)

1. [U]优先权,重点right to have or do sth before others
2. [C]优先考虑的事thing that is (regarded as) more important than others

preferencen.偏爱；优先；喜爱物；优惠

inferiorityn.自卑；低劣

1. This is the key and should be given top priority.
   这是关键，要放在第一位。
2. Efficiency does not always have priority.
   效率不一定总是优先。
3. Improving the plight of teachers is indeed a priority item.
   改善教师的困难处境的确是优先处理的一件事情。