I have been engaged in answering the letters.
我一直忙着写回信。
My family has been engaged in farming for generations.
我家几代都从事农业。
Our company has been engaged in ceramics for over 20 yeas.
我公司从事陶瓷行业已有20多年了。
We have been engaged in this kind of goods for so many years.
我们经营这类商品已有多年。
He has been engaged in the study of cotton-growing for 20 years.
他从事棉花种植的研究已有20年之久。
Italy has been engaged in air policing Slovenia's air space for NATO since 2007.
从2007年开始，意大利已经从事于保卫斯洛文尼亚领空的“空中警察”任务。
And we've only been engaged in heavy industry for a little over two hundred years.
而且我们进入工业时代不过两百来年。
Been engaged in CCTV Financial Channel, and even awards were organized by the party.
央视财经频道搞过，甚至还举办什么颁奖的晚会。
Not only the old, the youth, but also middle school students have been engaged in smoking.
不仅老人、年轻人，而且中学生也一直在从事吸烟。
The young man had been engaged in an intrigue with a girl who played in touring companies.
这位年轻人过去曾和一个巡回剧团的女演员私通。
Not only the old, the youth, but also middle school students have been engaged in smoking.
不仅是老人，青年，而且中学生都吸烟。
The whole evening he had been engaged in/ upon answering questions from the ardent audience.
整个晚上他忙于回答热心听众提出的问题。
They come away with feelings of joy, calm and curiosity, having been engaged in both body and mind.
他们带着愉快、平静和好奇的感觉离开，身体和心灵都参与其中。
In my past 4 years of work I have been engaged in the preparation of plans and on-site management.
在我过去近4年的工作中我一直在从事计划的编制和现场管理方面的工作。
In recent years, China has been engaged in international de-mining cooperation and assistance in various ways.
近年来，中国通过多种方式积极致力于国际扫雷合作与援助。
Yao is a 2000 Turing Award winner who has long been engaged in the study of computer quantum information science.
姚期智长期从事计算机量子信息科学研究，在2000年的时候获得了图灵奖。
To think he was taken away in so short a time after leaving home, while I have been engaged in six or seven battles!
想想他离家还没多长时间就这么走了，而我都打了6,7场仗了！
We have been engaged in exporting cameras for 20 years and are closed connected with large manufacturers in our city.
我方从事相机出口达20年，并与本地的大厂商有密切的关系。
The authors have been engaged in field research continuously for many years, 30 years in the case of the first author.
这些作者连续多年都在从事野外研究工作；就第一位作者而言，时间则长达30年之久。
For decades has been engaged in electronic weighing, and a new automatic instrument research, development and production.
几十年来一直从事电子称重和新型自动化仪表的研究、开发和生产。
Over the years the company has been engaged in sealing product development, production, marketing and technical services.
本公司多年来一贯从事密封产品的开发、生产、销售和技术服务。
Since leaving office, Clinton has been engaged in getting HIV therapies to needy countries through his Clinton Foundation.
自从离职，克林顿已经通过他的克林顿基金使得有需要的国家得到HIV的治疗。
The author has long been engaged in judicial practice, the main contents of papers on the robbery or that the judicial aspect.
鉴于笔者长期从事司法实践，所以论文的主要内容还是对抢劫罪的司法认定方面。
Prof He has been engaged in liver transplantation for 20 years, and he has experienced over 1000 cases of liver transplantation.
是我国最早从事肝移植研究的中青年学者之一，从事肝移植工作20余年，已有1000余例肝移植经验。
In the recent 20 years, the author of this article has been engaged in the psychological research into human resource management.
近20年来，笔者在人力资源管理心理学研究方面进行了探索，取得一定的进展。
Since 1971, WOLTER has been engaged in the design and manufacturing of fans and ventilation products for the international market.
自1971年以来，华徳在国际市场上一直致力于风机和通风设备的设计与制造。
Since 1971, WOLTER has been engaged in the design and manufacturing of fans and ventilation products for the international market.
自1971年以来，华徳在国际市场上一直致力于风机和通风设备的设计与制造。
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