The chest disease is endemic among miners in this area.这种胸部疾病是流行于本地区矿工中的地方病。Simple ( endemic ) goitre , the most common, is due to low iodine intake.最常见的 甲状腺 肿是由于碘的摄入量不足.Objective To propose suitable prevention measures ...
She had niggling doubts about their relationship.她时常对他们的关系有一丝疑虑。The matter is too small to be worth niggling over.小小不言的事,不必计较.It's been niggling at my mind ever since I met Neville in Nice.自从在尼斯见到内维尔后，我一直忐忑不安。...