What you're supposed to know: a waxy, fatty material, cholesterol is produced by the liver and carried in the bloodstream.
必备知识：胆固醇是一种油腻的膏状物，由肝脏产生并携带于血管中。
Moreover, brain tissue contains a great deal of oxidisable material, particularly in the fatty membranes surrounding nerve cells.
此外，脑组织内含有许多可氧化的物质，特别是绕在神经细胞周围的脂肪膜。
These organisms, living in such waters in enormous quantities, contain fatty acids and amino acids which are the basic material of oil formation.
生活在这种环境中的大量浮游生物具有脂肪酸和氨基酸，而这两种物质又是形成石油的基本物质。
应用推荐