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1·He resigned amid allegations of financial impropriety.

他因在财务上不恰当的陈述辞职了。《柯林斯英汉双解大词典》

2·They were shocked by the impropriety of the young man's action.

他们为那年轻人的不当举止而感到震惊。《新英汉大辞典》

3·Impropriety is the soul of wit.

不当是风趣的精髓。

4·There was no evidence of impropriety.

没有什么不当行为的证据。

5·I was surprised by the impropriety of his remarks.

他的话不得体，我听了很诧异。

6·It was the abode of noise, disorder, and impropriety.

这是一个吵吵闹闹、乱七八糟、没有规矩的人家。

7·Right now, the French can ill-afford even the whiff of impropriety.

目前，法国人承受不了哪怕一点点的行为欠妥。

8·A lawyer should avoid even the appearance of professional impropriety.

律师应避免出现不正当业务现象。

9·I do not censure her _opinions_; but there certainly _is_ impropriety in making them public.

我不指摘她的看法，但是她把这些看法公诸于众，无疑是不妥当的。

10·Elizabeth, however, had never been blind to the impropriety of her father's behaviour as a husband.

不过伊丽莎白并不是看不出父亲的缺德。