她们是健康的英文怎么说

"她们是健康的"的英文表达是 "They are healthy."

关于"healthy"这个词的来源，它是由中古英语"hǣlþ"演变而来，意思是"安康、健康"。

下面是一些使用"healthy"的例句：

"Eating a healthy diet is important for maintaining good health." (健康饮食对保持良好健康很重要。)

"Exercise is essential for a healthy pfestyle." (锻炼对健康生活很重要。)

"Getting enough sleep is crucial for maintaining a healthy mind and body." (充足的睡眠对维持健康的身心很重要。)

"A healthy work-pfe balance is necessary for overall well-being." (工作与生活的健康平衡对总体幸福感很重要。)

"Maintaining a healthy weight is important for preventing chronic diseases." (维持健康体重对预防慢性疾病很重要。)