sīdài
сыдай
сы1 дай4
http://www.chinese-russian.com/zd/ci/3096
http://www.chinese-russian.com/zd/ci/110582
http://www.chinese-russian.com/zd/ci/110708
sìdài
сы4 дай4
http://www.chinese-russian.com/zd/ci/16057