این وایت بردها بعد از یه مدتی کارایی خودشون رو از دست میدن

Question

دنبال اینم که چطور مفهوم از کار افتادگی وایت برد (مثلا به دلیل استفاده طولانی مدت) رو باید بیان کرد.

Answer 1

These whiteboards (will) lose their quality after some time.

These whiteboards get inefficient / will be / will get worn out after some period.

Comments

Thank you dear Behrouz. (+)

Isn't that meant to be one of the following?

 "...be/get worn out" 

"...wear out"

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Dear Bizi,

You're welcome. Also you are absolutely right.I will amend my answer to that effect.

Answer 2

will lose their function