Meaning of "run through"

[Sophie]

I don't understand the meaning of this sentence at all because the phrasal verb "run through" is ambigual.
The supervisor suggested running through the emergency fire procedure again.
Thank you for your help.
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On earth there is nothing great but man, in man there is nothing great but mind.

[Mister Micawber]

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Run through = to practice, review, or rehearse quickly or informally.
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_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber

[Sophie]

Hi!
I'm afraid I haven't picked up the meaning of this sentence.
Can you explain it?
_________________
On earth there is nothing great but man, in man there is nothing great but mind.

[Mister Micawber]

.
The boss suggested that we practice the emergency fire drill again.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber