From time to time he will take on a new persona.他时常伪装自己。From time to time, James remained at home with his family.詹姆斯偶尔留在家里陪家人。Keep your head up, and look around you from time to time.要抬起头，不时看看四周。...
The accusing look in her eyes conveyed her sense of betrayal.她责备的眼神中流露出一种被骗的神情。The ambassador personally conveyed the president's message to the king.大使将总统的口信亲自转达给国王.They conveyed the joyous news to us soon.他们把这一佳音很...
介绍了苯乙酸的生产方法 、 用途及市场.The production process, use and market of phenylacetic acid were introduced.介绍了鉴别氯代乙酸的反应原理和操作方法.Reaction principles of chloroacetic acid detection and its operation Methods: Were introduced.在此反应条件下, 乙...