It may be advisable to have a blood test to put your mind at rest.

验一下血让你自己安心也许是明智的。

《柯林斯英汉双解大词典》

Let me put your mind at rest about that.

有关那一点，请您尽管放心好了。

youdao

You can call the teacher to ask about it, and it will put your mind at rest.

你可以打电话问问老师，那样的话，你就放心了。

youdao

Hopefully that doesn't lead to any unintentional interhousehold griefing as users manage the often inadequate hard drive space in their cable DVR, but it can certainly put ones mind at rest to know The League (or whatever your show of choice might be) was successfully archived.

ENGADGET: Comcast quietly updates DVRs with ability to list stored programs from the web, mobile apps