他得了一种叫作儿童早衰症的病。
这是因为这位教授得了一种病，使他不能讲话了。
That is because this professor has a disease which prevents him from speaking.
他得了一种罕见的心脏病。
他最后得了一种所有医生都闻所未闻的病。
He finally came down with some strange disease that the doctors had never seen.
他最后得了一种所有医生都闻所未闻的病。
He finally came down with some strange disease that the doctors had never seen.
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