Sometimes I really doubt whether there is love between my parents.

有时候，我真的怀疑父母之间是否有真爱。

youdao

youdao

I still doubt whether the practical value of this project really exists.

我仍然怀疑这个项目是否有实际价值。

youdao

His shooting,and the upheaval that has followed,casts doubt on whether elections rescheduled for January will be held.

VOA: standard.2009.12.07

You kind of doubt whether vegetarians would eat human flesh.

你不相信素食者会吃人肉。

耶鲁公开课 - 新约课程节选

.. You mentioned earlier that you doubt... you have questions about whether this high rate of growth is sustainable?

您之前提到过您怀疑。,您质疑印度经济的高增长率,能否保持下去？

普林斯顿公开课 - 国际座谈会课程节选

This made many Liberians doubt whether a government under his command would stay sufficiently clean.

ECONOMIST: A milestone, perhaps, for Liberia and Africa | The

But repeated disappointments have led some experts to doubt whether antisense makes any sense at all.

FORBES: Antisense and Sensibility

Many people doubt whether the new council will dare challenge the emir or his ministers.

ECONOMIST: Qatar