It is because when these young girls and boys work together all the day, they are easy to fall in love with each other.
这是因为当这些年轻女孩和男孩在一起整天工作，他们很容易爱上对方。
To say it in an easy way, if you are a 16-year-old girl, your BMI should be between 17 to 24.7, as for boys of the same age, a healthy BMI score is between 17 and 24.
简单来说，如果你是一名16岁的女孩，你的体质指数应该介于17与24.7之间；若是同龄的男孩，健康的体质指数则应介于17与24之间。
To say it in an easy way, if you are a 16-year-old girl, your BMI should be between 17 to 24.7, as for boys of the same age, a healthy BMI score is between 17 and 24.
简单来说，如果你是一名16岁的女孩，你的体质指数应该介于17与24.7之间；若是同龄的男孩，健康的体质指数则应介于17与24之间。
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