Scientists are still studying all the complex ways in which nutrients interact with the immune system.
科学家们仍在研究营养成份与免疫系统相互作用的复杂方式。
2
Sharks have strong, compleximmune systems that include an angiogenin inhibitor in their cartilage.
鲨鱼有强壮的，复杂的免疫系统，包括软骨中的血管生长素抑制物。
3
He then analysed the men's and women's DNA, looking in particular at the genes that build a part of the immune system known as the major histocompatability complex (MHC).