你必须对这些结果有所保留，因为调查对象们倾向于给出他们认为应该给的答案。
You have to take these findings with a grain of salt because respondents tend to give the answers they feel they should.
一个奇怪的、几乎不可理解的事实是，许多教授认为他们应该用一种枯燥的方式讲课，就像他们觉得写作也必须很枯燥一样。
The strange, almost incomprehensible fact is that many professors, just as they feel obliged to write dully, believe that they should lecture dully.
由于这些规则是逻辑数据模型的一部分，所以不应该认为一个数据库必须实施这些规则。
Just because these rules are part of the logical data model, one should not assume that they must be enforced by a database.
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