 
 <translate> The relevant sentence in the passage is: The Hong Kong dollar (Chinese: 港幣; Cantonese Yale: Góng bàih; sign: HK $; code: HKD) is the official currency of Hong Kong.
So, the final answer is The Hong Kong dollar. <hau> Jumlar da ta dace a cikin nassi ita ce: Dalar Hong Kong (Chinese; Cantonese Yale: Góng bàih; alama: HK $; lambar: HKD) ita ce kuɗin hukuma na Hong Kong. Don haka, amsar karshe ita ce dalar Hong Kong. 