ureter

n either of the two tubes by which urine passes from the kidneys to the bladder 输尿管.

upturn, upturned, upward, upward (also upwards / -wEdz; -wLdz/), upward mobility, upward(s), upwards, upwards of, upwind, uranium, urban, urbane, urbanely, urbanity, urbanization, urbanisation, urbanize, urbanize, urbanise, urchin, Urdu, urea, urethra, urge, urge sb to do, urge sb. on, urged, urgency, urgent, urgently, uric, urinal, urinary, urinate, urine, urn, us, USA, usable, USAF, usage, use,