为什么没有机器的帮助，霍金就不能说话和呼吸？
Why was Hawking unable to speak or breathe without the help of machines?
当他在牛津大学学习数学和科学时，他得了重病，这使他不能说话，没有机器的帮助就不能呼吸。
When he studied math and science at Oxford University, he became seriously ill, which made him unable to speak or breathe without the help of machines.
由于有机器的帮助，我们能按时完成任务。
With the machine helping us, we could finish the work on time.
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