pis

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