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系
序
系
序
Definitions2 characters
xì4 xù4
system; line, link, connection / order, sequence, series; preface
Usage•••frequent
Pronunciations
系
序

As word

1
xì4
system; line, link, connection / order, sequence, series; preface
2
xù4
system; line, link, connection / order, sequence, series; preface