他工作太辛苦了。
He has been working since noon.
他从中午就开始工作了。
He has been working very hard.
他一直都很努力。
他已工作了一整天。
He has been working on the paper all day.
他整天都在写论文动作是否延续下去，由上下文决定。
He has been working hard for a long time.
他已经努力了很长的时间。
He has been working in the lab for two hours.
他已经在实验室里工作了两个小时。
He has been working on this painting for days.
这张画他已画了好些天了。
He has been working on it for more than ten years.
他已经在公车上工作了超过十年了。
He's very tired; he has been working hard all day.
他很累；他整天都在努力工作。
He has been working on his new book in recent days.
近来他一直忙着写他的新书。
He is badly ill because he has been working too hard.
他因为过分劳累而病情严重。
He has been working in emergency room since I met him.
自从我上次见到他时，他就一直在急诊室工作。
He has been working overnight. No wonder he looks worn out.
干了一整夜，难怪他看上去很疲倦。
Jim is in his 70's and he has been working out for many years.
吉姆已经70多岁了，他在这已经锻炼多年了。
He graduated in 1999 and he has been working here ever since.
1999年毕业以来，他一直在这儿工作。
He has been working hard, so he has made much progress recently.
他一直努力工作，所以他近来取得了很大进步。
Don't be envious! In fact, he has been working very hard lately.
别羡慕！事实上，他最近一直非常努力做事。
His eyes are deep-set because he has been working till midnight recently.
他的眼睛深陷，因为他这段时间总是工作到深夜。
Though he has been working for several years, we have much to talk about.
虽然他已经工作好几年了，可是我们非常聊得来。
My father is a bus driver. He has been working on it for more than ten years.
我的父亲是一名公交车司机。他已经在公车上工作了超过十年了。
He has been working here since his graduation from Harvard University ten years ago.
从哈佛毕业后，他就一直在这里工作，都十年了。
Here for the past ten years he has been working in a theatre unable to finish his magnum opus.
泰特罗逃离他的父亲来到布宜诺斯艾利斯，在过去的十年里他一直工作在剧院里无法完成他的巨作。
For example, he has been working on an app in which users must keep their cool in various dating scenarios.
例如，他在攻关的一个应用中，用户必须在多种约会情景下保持冷静。
He only has that much of energy, although he has been working on that continuously, and improved steadily.
他只有这么多体力，尽管他努力提高，并且不断的进步。
He only has that much of energy, although he has been working on that continuously, and improved steadily.
他只有这么多体力，尽管他努力提高，并且不断的进步。
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