那: a surname村庄: village; hamlet有: 5年 fifteen years一次: once集市: country fair; market; fair; ...每月有几天: days of the month一次集中飞行: a concentration of flights下次集市日是在15日the: next market is on the 15th有一次: on one occasion每月一次: once a month; once/month每月一次的: mensal; monthly告诉我他每月有多少薪金: where is your father working tell me his monthly salary每月的,每月一次的: monthly每月检查一次: to check monthly还有一次: on another occasion仅有一次: once难得有一次: once in a blue moon有一次奇遇: have an adventure曾经，有一次: on one occasion只有一次: for once; only one time只有一次的: one-shot做你有一次: do you have a little time每月得到一次付款: to be paid monthly每月一次的例会: a monthly meeting visit magazine每月一次的试样: monthly sample
