The body is made up primarily of bone, muscle, and fat.

人体主要由骨、肌肉和脂肪组成。

《柯林斯英汉双解大词典》

Our bone marrow contains fat in the form of small globules.

我们骨髓里有圆滴式的脂肪。

《柯林斯英汉双解大词典》

We have what are called mesenchymal stem cells. This type of stem cell goes on to become either fat or bone.

间质干细胞是一种有分化潜能的干细胞，它可以分化成脂肪细胞或者骨髓细胞。

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The research found thin people were less protected by body fat so had an increased risk of bone fractures, which could raise their injury rate.

BBC: Accident risk for fat drivers

The iron stove had a cast-iron warmer on the top, and in that warmer would be pork roasts and pork chops and fried chicken, two gallon pots of butter beans with salt pork, navy beans with ham bone, rattlesnake beans glistening with bacon fat, pans of chicken and dressing, macaroni and cheese, cornbread and cathead biscuits, mounds of mashed potatoes and sweet potatoes, skillets of fried green tomatoes.

NPR: Excerpt: 'The Prince of Frogtown'

That's because the appearance of a face is made of many components: skin, fat, muscle and bone.

CNN: Face transplant patient ready to go home