| 单词 | oily substance |
| 释义 | oily substance This oily substance, when cooled, becomes denser, and this allows the whale to control its buoyancy and hence depth in the ocean. Times, Sunday Times Experts believe the disease triggers a change in sebum, an oily substance in the skin, that causes the odour. The Sun They were capable of emitting an oily substance from the nostrils, which were located between the eyes or on the forehead. Retrieved from Wikipedia CC BY-SA 3.0 Although they have no skin glands, their skin secretes an oily substance that provides a water barrier that protects takins from the elements. Retrieved from Wikipedia CC BY-SA 3.0 Sebaceous glands are glands located within the skin and are responsible for secreting an oily substance named sebum. Retrieved from Wikipedia CC BY-SA 3.0 |
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