How to say peace of mind in English?

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Original sentence: peace of mind

Translation: feel at ease; ; Rest assured; reassure

Anxin holiday angel tour

Anxin, let's play. I'll email you.

An Xin an Xin Kan

Safely; Feel at ease; Quiet sorrow; In terms of security; confidently

Anxin granules

Anxin oral liquid

Concentrate on your studies with peace of mind

Isosorbide mononitrate of Anxinmai; ; Heteroadsorbent

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