necessary expense

• 保存费,必需费用

necessary expense的用法和样例：

例句

1. Necessary expenses incurred for the custody of the civil aircraft.
   保管维护该民用航空器的必需费用。
2. However, it shall leave out the necessary living expenses for the person subjected to execution and his dependant family members.
   但应当保留被执行人及其所扶养家属的生活必需费用。