Ppl
abbr. 等离子体物理实验所[美]（Plasma Physics Laboratory）；等离子体喷射推进实验所[美]（Plasma Propulsion Laboratory）；多用途程序设计语言（Polymorphic Programming Language）
🗣️ 情景例句
Different kinds of activities, such as commenmorative meetings, planting trees,
举行各种各样的活动，例如召开纪念大会，植树造林，
Whom are you calling?
你要找谁？
Was the damage extensive?
坏得很多、很严重吗？