a high cholesterol level的用法和样例：
- A high cholesterol level in the blood can cause heart disease.
- What role did a high cholesterol level play in his heart disease?
- Pyruvate and dihydroxyacetone sumpplementation may improve the sensitivity of insulin and decrease plasma cholesterol levels induced by a high cholesterol diet,too.
- I have a high cholesterol count.
- Beside, 3.9% of the subjects had borderline of high cholesterol level.