원리가 · 원리를
principle (how something works)
Example
이 기계가 움직이는 원리를 설명해 주세요.
Please explain the principle behind how this machine works.
Word parts
원 origin+리 reason, logic
Literally 'the original logic' behind something.
Good to know
원리 is how something works; 원칙 is a rule or principle you follow.
Related words