Since then, the old man furtively fetched the gold sand once every half a month or so, so he became rich soon.
从此，老汉过个十天半月就偷偷来取一次金砂，日子很快富裕起来。
The former civil servant lives with his son, drinks milk every day and has no major illnesses, although he now writes in his diary only once or twice a month.
老人曾经是公务员，和他的儿子住在一起；每天喝牛奶，身上没什么大病。
He calls at every house in the street once a month and always asks for a meal and a glass of beer.
他这条街上的每户每月一次，而且总是要一顿饭和一杯啤酒。
It may need to be injected only once every month, a procedure that could be done at home, compared to other drugs that must be administered more often, he said.
它只需要一月注射一次，可在家中注射，如果用其他药就得住院。
It may need to be injected only once every month, a procedure that could be done at home, compared to other drugs that must be administered more often, he said.
它只需要一月注射一次，可在家中注射，如果用其他药就得住院。
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