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保持空气清新英语：Keep the air fresh。
双语例句
1、TO2膜也可分解有机气体，以保持空气清新。
The TO 2 photo catalytic film may also clean the organic pollutant to keep the air fresh.
2、树吸收二氧化碳，释放氧气，从而保持空气清新。
Trees keep our air clean by taking in carbon dioxide and sending out oxygen.
3、报告表示：保持空气清新，对挽留人才和吸引国际投资十分重要。
he report said: Maintaining clean air is essential in retaining talent and attracting international investment.
4、请开窗通风，保持病室空气清新。
Please open the window to keep the air in the ward fresh.
5、保持环境空气清新，严格执行终末消毒。
Keeping the air clean and strictly implementing steps of antisepsis at the end.
