为获利从动物体内提取胰岛素。Insulin is produced commercially from animals.胰岛素是胰腺分泌的。Insulin is secreted by the pancreas.糖尿病是由体內胰岛素分泌失调引起的.Diabetes is caused by a fault in the insulin production of the body....
She was silent, her eyes downcast.她一言不发，两眼低垂。Barbara looked increasingly downcast as defeat loomed.当败象已呈时，芭芭拉看上去越来越沮丧。Eyes downcast, she continued eating.她低垂双眼，不停地吃。...
“我会找催眠师试试，”我突然坚决地说。"I think I'll try a hypnotist," I said with sudden resolution.职业赛马骑师禁止对赛马结果下注。Jockeys are forbidden to bet on the outcome of races.由专用理疗师或医生为运动员做检查。The athlete is checked by their physio or doctor...