English
English version

that’s/it’s Psychology 101/Marketing 101 etc

From Longman Dictionary of Contemporary Englishthat’s/it’s Psychology 101/Marketing 101 etcthat’s/it’s Psychology 101/Marketing 101 etcinformal used to say that a piece of knowledge relating to something is very simple and basic If you’re with a girl, don’t stare at other girls: that’s Dating 101. 101
Pictures of the day
Do you know what each of these is called?
Click on the pictures to check.