1.weight loss 减重
例句:Symptoms of the disease include fever and weight loss.
这种疾病的症状包括发烧和体重减轻 。
2.clinical investigation 临床研究
例句:The study was published in the Journal of Clinical Investigation.
此项研究已经发表在临床研究期刊上 。
3.risk factor 危险因素
例句:If you do that, the whole idea of a risk factor doesn’t make any sense to me.
如果你们这样做的话,对我来说,整个风险因素的概念没有任何意义 。
4.occult blood 隐血
例句:Many other conditions can cause occult blood in the stool.
许多其他条件可能会导致隐血出现在粪便中 。