台湾籍旅美老师今天交给我们的句子是：

Sitting is obviously a huge problem and it's not something that we talk or really think about so much, at least not as much as diet and exercise.

久坐明显是一个很严重的问题，而我们日常的生活中比较少讲到或想到它，至少并不像我们谈论饮食及运动一样普遍。

学习重点：

1.obviously 清楚的，显而易见的
obviously (adv.) 清楚的，显而易见的

2.at least 无论如何；至少
at least (phr.) 无论如何；至少

3.diet 饮食，食物
diet (n.) 饮食，食物