marital obligation

例句：

1. 1.Marriage is a legal contract that requires both parties to fulfill certain obligations.
   婚姻是一种法律合同，要求双方履行一定的义务。
2. 2.The husband and wife are expected to share their marital obligations equally.
   夫妻双方应平等分担婚姻义务。
3. 3. The couple agreed to fulfill their marital obligations by paying off the mortgage.
   这对夫妇同意通过支付抵押贷款来履行他们的婚姻义务。