regular day off (e.g. closed every Monday)

the twentieth day of the month / twenty days / Short for 二十日鼠 (hatsuka nezumi): a house mouse

幾日も幾日も: day after day

catch one's eye, attract one's attention

cheating or deceiving to favor oneself at gambling or some other activity, such as by making sure the dice roll a certain way, or by rigging a deal of cards / such a cheat or deception

(gambling, idiomatic) doubles: two of the same number other than 1, after rolling two dice / (gambling, idiomatic) in a forecast bet, betting that the same horse wins twice in a row

have an eye on

(idiomatic) a temptation

(idiomatic) watch out for, keep an eye out for

be intolerable