伯格侧着头，脸上掠过一丝调皮的神情。Berg tilts his head and a mischievous look crosses his face.她不语，从她脸上掠过的一丝表情可知她是认得的。An expression of dumb recognition wiggled across her features.他英俊的脸上掠过一丝大惑不解的神情。A look of utter confusion swept across ...
Give local anesthesia . Drill to open a tooth, clean dentine.钻开牙齿, 去除腐坏的牙质.Objective To know the mechanisms of treating dentine hypersensitivity by NS Paint.目的探讨NS牙面涂料对牙本质过敏症的治疗机制.Green OrTM was an effective drug to trea...