Operational expenditure
[法] 业务费用
🧩 词语组成解析
🗣️ 情景例句
Take it easy. Don't work too hard.
悠着点。不要操劳过度。
No one is a fool always, every one sometimes.
无人总是当傻瓜，人人有时当傻瓜。
Experiments have proved that children can be instructed in swimming at a very early age.
实验证明，儿童在很小的时候就可以开始学习游泳。