gǔwǔ
гуу
гу3 у3
http://www.chinese-russian.com/zd/ci/191575
gǔwù
гу3 у4
http://www.chinese-russian.com/zd/ci/175554
http://www.chinese-russian.com/zd/ci/12933
gùwú
гу4 у2
http://www.chinese-russian.com/zd/ci/153953