doubt
/daʊt/
the state of being unsure of something
中文释义：怀疑；疑虑
There is no doubt that regular exercise improves mental health.
毫无疑问，定期锻炼能改善心理健康。
She expressed doubt about the effectiveness of the new treatment.
她对这种新疗法的有效性表示怀疑。
/daʊt/
the state of being unsure of something
中文释义：怀疑；疑虑
There is no doubt that regular exercise improves mental health.
毫无疑问，定期锻炼能改善心理健康。
She expressed doubt about the effectiveness of the new treatment.
她对这种新疗法的有效性表示怀疑。