dūyóu
дую
ду1 ю2
http://www.chinese-russian.com/zd/ci/47372
dúyǒu
ду2 ю3
http://www.chinese-russian.com/zd/ci/107400
dǔyǒu
ду3 ю3
http://www.chinese-russian.com/zd/ci/58751