chīsù
чису
чи1 су4
http://www.chinese-russian.com/zd/ci/142177
chísù
чи2 су4
http://www.chinese-russian.com/zd/ci/181156
chǐsù
чи3 су4
http://www.chinese-russian.com/zd/ci/65473
http://www.chinese-russian.com/zd/ci/85210