I think I understand the nuts and _____ of the operation.
nuts and bolts = the details of something
940 MCQ for effective preparation of the test of Idioms of English Grammar section.
Read the MCQ statement: I think I understand the nuts and _____ of the operation., keenly and apply the method you have learn through the video lessons for Idioms to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 866-5145.