Operating maintenance
[经] 经营修护, 小修
🧩 词语组成解析
operating
[['ɔpəreitiŋ]]
a. 操作的, 工作的, 营业上的, 业务的, 关于收支的, 关于损益的, 外科手术的\\n[机] 运转费用
🗣️ 情景例句
Would you be driving straight to the train station?
您想直接去火车站吗？
She will certainly remain single.
她肯定会保持独身。
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，