When the engineer found the machine stopped working, he stopped to check what the.
当工程师发现机器停止工作，他停下来查看出了什么错。
The poor boy became a famous engineer when he grew up.
这个贫穷的男孩长大后成为了一名著名的工程师。
When he left, one mathematician said to the other: "Just like an engineer!"
工程师走后，一个数学家对其他人说，“他终究不过是一个工程师！”
The engineer hurried to find out when the accident happened.
工程师赶忙去事故找什么时间发生的。
The boy wants to be an engineer when he grows up.
这个男孩长大后想当工程师。
The boy wants to be an engineer when he grows up.
这个男孩长大后想当工程师。
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