合该

合该	hé gāi	ought to; should
合	gě	100 ml / one-tenth of a peck / measure for dry grain equal to one-tenth of sheng 升 or liter, or one-hundredth dou 斗
合	hé	to close / to join / to fit / to be equal to / whole / together / round (in battle) / conjunction (astronomy) / 1st note of pentatonic scale / old variant of 盒
合	hé	variant of 合
该	gāi	should / ought to / probably / must be / to deserve / to owe / to be sb's turn to do sth / that / the above-mentioned