这些努力都没有奏效，人们失望地回家。
None of these efforts worked, and the people went home disappointedly.
“那么你们谁都没有得到答案，”马丁很失望地说。
"So neither one of you found the answer," Martin said disappointedly.
老教授失望地摇了摇头，说：根据科学，我们对周围事物的观察和了解，是用五官。
The old professor disappointedly shook his head, said: according to science, to the things around us to observe and understand, is to use facial features.
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