dǎdǔ
даду
да3 ду3
http://www.chinese-russian.com/zd/ci/90272
dàdū
да4 ду1
http://www.chinese-russian.com/zd/ci/80597
dàdù
да4 ду4
http://www.chinese-russian.com/zd/ci/80429
http://www.chinese-russian.com/zd/ci/80098