shǐtóng
шитун
ши3 тун2
http://www.chinese-russian.com/zd/ci/135320
shìtóng
ши4 тун2
http://www.chinese-russian.com/zd/ci/69409
shìtǒng
ши4 тун3
http://www.chinese-russian.com/zd/ci/2990