但是对一部分人来说，他们的骨密度会很快得降低，导致骨骼变得疏松，增加了骨折的风险性。

But for some, the decline in density is rapid, as their bones become porous and fracture risk increases.

youdao

但是家庭收入的真正意义是要受无数因素影的：地理位置、家庭规模和身体健康，对一部分人来说是合理的。

But the real significance of household income is impacted by countless factors: geographic location, size of household, and physical health, just to name a few.

youdao

对他们来说，人是自然环境的一部分。

For them, people are part of their natural environment.

youdao

The generations of students that are coming to University today have essentially grown up with the Internet. And some of them are the first generation Where the internet have been part of their life in their Formative years. For most of us, the people of my age, The internet came later.

现在进大学的这一代学生,成长在因特网的环境下,一些人是伴随着因特网成长的第一代,网络是他们性格形成期的一部分,然而对我们这个年纪的人来说，因特网是后来才有的。

麻省理工公开课 - 媒体、教育、市场课程节选