pis的中文意思、音标与词形变化

abbr. 产品形象系统（Product impression system）；菲律宾群岛（Philippine Islands）

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