保持维持 用英语怎么说

"Maintain" or "sustain" 可以用来表示 "保持维持" 的意思。
"Maintain" 来自拉丁语的 "manutenere"，意思是 "保养，维护"。例如：
We need to maintain the equipment regularly to ensure it stays in good working condition. (我们需要定期保养设备，以确保它保持良好的工作状态。)
The company is responsible for maintaining the buildings on the property. (公司负责维护这个地产上的建筑物。)
"Sustain" 来自拉丁语的 "sustinere"，意思是 "支持，承受"。例如：
The company's profits have sustained a steady increase over the past few years. (过去几年里，公司的利润一直保持稳定增长。)
The structure is designed to sustain strong winds and earthquakes. (这个结构设计用来承受大风和地震。)