Pbm
abbr. performance-based management 基于执行的管理经营; peribacteroid membrane 拟杆菌周膜
🗣️ 情景例句
Your car needs a tune-up.
你的车该整修了。
A book that remains shut is but a block.
有书闭卷不阅读，无异是一块木头。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）