unusual中等

the hazard of retrieving files through unusual means.

通过不寻常手段读取文件的危险。

Financial regulators in Britain have imposed a rather unusual rule on the bosses of big banks.

英国金融监管机构对大银行的老板们实施了一项相当不同寻常的规定。

American papers have long been highly unusual in their reliance on ads.

长期以来，美国报纸对广告的依赖程度极不寻常。