Deposits of plaque build up between the tooth and the gum.牙齿和牙龈之间会滋生牙斑。I was in agony with tooth ache.我牙疼极了.Objective : To study the stress tooth preparation with two kinds of porcelains.〔摘要〕目的: 研究瓷贴面复合体应力分布规律.The dentis...
Thai Airways said the plane had been given clearance to land.泰国航空公司说，该飞机已经得到降落许可。Thai food is terrific.泰国菜棒极了。Thai food's very moreish, isn't it?泰餐特别好吃，不是吗？...
The melodic line is carried by the two clarinets.主旋律由两支单簧管奏出。He often combined female voices with trumpets or clarinets and male voices with trombones or saxophones.他经常将女声与喇叭或单簧管混合,男声和长号或萨克斯管混合....