The study 9 found that the genes for smell were something shared in friends but not genes for immunity.
研究9发现，嗅觉基因是朋友间共享的，但免疫基因则不是。
For women, the association may be 12 to changes in immunity that resulted from excess abdominal fat; in men, the immune system did not appear to be 13 .
对于女性，这种关联可能与腹部脂肪过多导致的免疫力变化有关；在男性中，免疫系统似乎并未13。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。