ne yapacağını bilemez halde

listen to the pronunciation of ne yapacağını bilemez halde
Турецкий язык - Английский Язык
at a loss
Below the cost or price of purchase

We sold those old computers at a loss.

Not sure; uncertain; lacking further ideas, direction, or ability

I have fixed the parts I understand, and the rest leaves me at a loss.

below cost (e.g., "He sold the goods at a loss")
below cost; "sold the car at a loss
below cost; "sold the car at a loss"
confused, bewildered, perplexed
filled with bewilderment; "at a loss to understand those remarks"; "puzzled that she left without saying goodbye"