The story
From Mandarin 黑龍江/黑龙江 (Hēilóngjiāng) Wade–Giles romanization: Hei¹-lung²-chiang¹.
Etymology from Wiktionary, CC BY-SA 4.0.
From Mandarin 黑龍江/黑龙江 (Hēilóngjiāng) Wade–Giles romanization: Hei¹-lung²-chiang¹.
Etymology from Wiktionary, CC BY-SA 4.0.