jíshù
See also:
jishu
,
jishū
,
jìshù
,
jìshū
,
and
jìshǔ
Mandarin
Romanization
jíshù
(
Zhuyin
ㄐㄧˊ ㄕㄨˋ
)
Hanyu Pinyin
reading of
級數
/
级数