N a sediment containing large quantities of fossilized animal remains, such as bones, teeth, scales, etc 骨层 [geology]
Now the river bed is bone dry.
目前河床十分干燥。
Get into the habit of early rising, and you will not want to lie in bed like a lazy bone.
养成早起的习惯，你就不会想要像懒汉一样躺在床上了。
The pattern of bone loss is 2-4 times greater than those associated with prolonged bed rest without spinal cord injury.
格局的骨丢失是2 - 4倍大于那些与长期卧床无脊髓损伤。
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