过去,这种机器被用来保持房间干燥用英语怎么说

网友回答

This kind of machine was used to keep room dry in past time.
======以下答案可供参考======
供参考答案1:
in the past this machine was used to keep the room dry.
供参考答案2:
in old days，this kind of machine was used to keep the room dry