(gāng) head rope of a fishing net; guiding principle; key link; class (taxonomy); outline; program
(gāngjǔmùzhāng) if you lift the headrope the meshes spread open (idiom); take care of the big things and the little things will take care of themselves; (of a piece of writing) well-structured and ordered
(gāngyào) outline; essential points
(gānglǐng) program; guiding principle