Ppis
abbr. perfect picture imaging system 完美成像系统; 理想成像系统; plan position indicator sonar 平面位置显示声呐; proton-pump inhibitors 质子泵抑制剂
🗣️ 情景例句
Happy birthday, Carl.
生日快乐 ，Carl。
He is pinned down by the demonstrators.
他被示威的队伍给钉住了。
A pilot noticed a balloon which seemed to be making for a Royal Air Force Station nearby.
一个飞行员发现了一只气球，它像是正飞往附近的一个皇家空军基地。