How to translate "you need to have this down cold"?
Recently, i have read some expression in one book: "you need to have this down cold". I have translated this like "you need to learn it by heart". But i am not sure that my translation is true. Google translates it wrong anyway, i have read it by context. This is not the case of "buziness english", but I am amused.

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Hi Ostap,

"You need to learn it by heart" is a good translation, but here is another one that you can use: "you need to have this down pat". It means the same thing (memorize or remember something, know something really well).

Let me know if you have any questions!
Savannah

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"Have this down cold" is a good translation. I think slightly better is "know this very well". This difference is this: "know this well" is the result of the activity "learn it by heart".

For example, you can say, "You need to have this down cold, so learn it by heart."