Plis
abbr. propellant-level indicating system 推进剂水平指示系统
🗣️ 情景例句
It really doesn't matter at all.
真的没关系。
The speaker kept wandering off.
演讲的那个人老是走题。
His telescopic observations are justly immortal;
伽利略用望远镜所作的观察确实是不朽的，