锐利

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,用锐利挖器平根管口切,拭干用氢氧化钙剂盖根面,硬,薄层氧化锌粘粉,用磷酸锌粘粉封洞。