Raising the debt ceiling is a routine process that has been done 78 times since 1960.

提高债务上限是一个例行进程，自1960年以来已经进行了78次。

Raising the debt ceiling is a routine process that has been done 78 times since 1960, but since 2011 has been a source of conflict when there's divided government.

提高债务上限是一种例行程序，自1960年以来已经进行了78次，但自2011年以来，当政府内部对该举措持分类态度时，已成为冲突的根源。

Raising the debt ceiling is a routine process that has been done 78 times since 1960, but since 2011 has been a source of conflict when there's a divided government.

提高债务上限是一种例行程序，自 1960 年以来已经进行了 78 次，但自 2011 年以来，当政府内部对该举措持分类态度时，已成为冲突的根源。