He examined the man with a penetrating gaze.

他以锐利的目光仔细观察了那个人。

Methods dip 2% lidocaine or impede narcosis, use the acuity exonerative plane root slot cut endodontium,after drying overlay thin hydrochloride zinc and than using the zinc phosphate to mount.

方法用2%利多卡因浸润或阻滞麻醉,用锐利挖器口切断牙髓,拭干后用氢钙剂覆盖髓断面,硬固后,覆薄层粘固粉,用磷酸粘固粉封洞。