sceptical

I'm sceptical about this cream's promise of instant results. ▶

我对这款面霜宣称的即时效果持怀疑态度。

Many consumers remain sceptical about environmental claims made by companies that provide little evidence of sustainable practices.

许多消费者仍对企业的环保宣传持怀疑态度，因为这些企业几乎未提供可持续实践的证据。