The main culprit, LDL (for low-density lipoprotein), is the body's oil truck, circulating in the blood, delivering fat and cholesterol to the cells.
主要的“罪犯”是低密度脂蛋白胆固醇，它是身体的运油车，在血液里向细胞传输脂肪和胆固醇。
2
For roughly an hour after Mr. Flynn's resignation letter began circulating, Breitbart did not change the main story on its home page, which was about immigration policy.
在弗林的辞职信开始流传约一小时后，布莱·巴特新闻仍然没有更换其主页上关于移民政策的头条报道。
3
This article introduced the main points, analysis methods of circulating analysis of matter and energy and its application in economy.