常见例句How to decrease anesthesin time and frequency is a important problem to be considered. 減少換葯次數及住院天數是一個重要問題。Keywords Oral superficial anesthesin Pharyngeal spraying Laryngeal spraying; 口腔表麪麻醉;咽部噴射;喉頭噴霧; 返回 anesthesin