The arrival of children also puts a disproportionate burden of household duties on women, a common source of marital conflict.

孩子到来后，也增加了女性在家务方面不平衡的负担，这也是婚姻冲突的一个常见原因。

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In most of the Gulf states, which do not even levy income tax, duties are the third-biggest source of government finance after oil exports and investment income.

ECONOMIST: Middle Eastern smugglers