They might grind their corn nightly, in such small quantities as their daily wants required, or they might grind the whole week's allowance at one time, on Sundays, just as they preferred.

他们可能每晚碾磨玉米，数量极少，只满足日常需要， 或者他们可以在星期天一次性碾磨一整周的零用量， 随心所欲。