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
Not only did he make a promise, but he also kept it.
他不仅许下诺言,而且遵守了。
Every solid object will reflect a sound, varying according to the size and nature of the object.
任何固体者反射声音,反射的声音因物体的大小和性质的不同而不同。
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