belly going, belly crawling / belly lining

to go forward, to advance, to progress / to improve, to progress

voluntarily; willingly

progress

belly

a line of text / (mathematics) a row of a matrix / (calligraphy) Abbreviation of 行書 (“semi-cursive script”).

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

abdomen / belly / stomach