My grandparents exercise twice a week to st__ healthy.

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英语初二的预习，非常急，先谢谢各位了

千问 | 2010-8-5 23:14:30 | 显示全部楼层

My grandparents exercise twice a week to stay healthy.我的祖父母一周锻炼两次来保持健康。stay healthy = keep healthy意为保持健康

千问 | 2010-8-5 23:14:30 | 显示全部楼层

My grandparents exercise twice a week to stay healthy.stay healthy意为“保持健康”

千问 | 2010-8-5 23:14:30 | 显示全部楼层

stay healthystay和keep都是系动词stay healthy和keep healthy都是保持健康的意思

千问 | 2010-8-5 23:14:30 | 显示全部楼层

stay

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