他反复保证项目在正轨上，但这几乎没能让团队平静下来。

His repeated ___reassurances that the project was on track did little to calm the team.

孩子们经常从父母那里寻求关于他们安全的持续保证。

Children often seek constant ___reassurance from their parents about their safety.

医生平静的态度给焦虑的病人带来了巨大的安慰。

The doctor's calm manner offered great ___reassurance to the anxious patient.