You have been working on this for some time, Richard.
你从事这工作已有一段时间了, Richard。
Joseph likes to listen to music.
约瑟夫喜欢听音乐。
I want to ask you for your advice. When I leave school, I want to be an engineer. For years I have been interested in engineering. I have made tools at home and have written articles for magazines. My father says that engineering is not a suitable subject