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。...
Both players have been suffering from niggling injuries.两名运动员一直在忍受轻微的伤痛。She had niggling doubts about their relationship.她时常对他们的关系有一丝疑虑。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...
Objective : Now , the best Rx for CNS diseases, such as PD and AD , is transplanting neuralcells.神经细胞移植是中枢神经系统(centralnervoussystem,CNS) 退行性疾病 、 遗传性疾病和中枢神经系统损伤引起的神经系统功能障碍最佳的治疗方案....
A changing world has put pressures on the company.日新月异的世界使这家公司感到了压力。Barry had his nose put out of joint by Lucy's aloof sophistication.露西的冷淡与世故使得巴里十分不快。Her bed was crisply made, her clothes put away.她的床收拾得很整洁，衣服也收起来...
In the sub - zero weather, their exhausts plumbed white in the grey streets.在严寒天气, 他们的排气管在灰色的街道上吐着缕缕白烟.Typical composition of the auto exhausts is given in Table IV - 6 .汽车尾气的典型成分示于表Ⅳ -6 中.Her book on child - care exhaus...
The two principal combustion products are water vapor and carbon dioxide.两种主要的燃烧产物是水蒸气和二氧化碳。The car windows were fogged with vapor.车窗上满是雾气。When nitric acid is poured on copper, a brown vapor gives off.将硝酸倒在铜上, 会散发出一种棕色的蒸...