“怀疑地”的英语可以翻译为：disbelievingly，doubtfully，dubitatively，enquiringly，skeptically ...

我怀疑地看着他，确信他在夸大其词。I looked at him skeptically, sure he was exaggerating.她怀疑地闻了闻。She sniffed at it suspiciously.他看上去很诚实,我就不加怀疑地相信了他的话.He looked so honest that I accepted his story on faith....