黄河

Yellow River or Huang He

yellow / pornographic / to fall through

river / CL:條|条[tiao2],道[dao4]

Yellow River Cantata (1939) by Xian Xinghai 冼星海[Xian3 Xing1 hai3]

lit. not to stop until one reaches the Yellow River (idiom) / fig. to persevere until one reaches one's goal / to keep going while some hope is left

the Yellow River basin

lit. even jumping into the Yellow River can't get you clean / fig. to become inexorably mixed up / mired in controversy / in deep trouble