"In una parola, quello di cui avete bisogno è pazienza."

Translation: In one word, what you need is patience.

[LindaNordin]

In one word, that which you have need of is patience. Why use all those words in Italian, if they are not accepted in the translation?

[_Andiamo_]

Why is "In a word, patience is what you need " not a correct translation?

[HazriqMarzz]

Could someone kindly break down "quello di cui" in this sentence? I'm having a hard time figuring out the different uses of "cui". Thank you in advance

[Melissa.fa]

I dont understand this sentence structure at all