pis
📖 中文释义
- abbr. 产品形象系统（Product impression system）；菲律宾群岛（Philippine Islands）
🧩 词形变化
原形 pi
📘 English Definition（英文释义）
- n the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...
- n someone who can be employed as a detective to collect information
- n the scientist in charge of an experiment or research project
- n the 16th letter of the Greek alphabet
- n an antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs