Too much exaggeration, a dismissive tone, or lack of eye contact are all sour notes in the tune of sincerity.

太多夸张之词，鄙视的语调，或是缺乏眼神接触都是判断一个人真诚与否负向因素。

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They then tested the bad singers’ ability to listen to some music and identify the sour notes. They found that the off-pitch crooners fall into two classes.

然后他们测试了跑调者的听音能力并找出了他们听得不准的地方。

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There are a couple of minor sour notes in the design.

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When the credit-linked notes turned sour following the 2008 financial crisis, Hong Leong claims it lost tens of millions of dollars and suffered damage to its reputation with clients.

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