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Definitions2 characters
kai1 ben3
book format, similar to in-4°, in-8° etc (a 16-kai format 16 and 16shi² liu⁴ - kai¹ is roughly A4) (abbr. to and kai¹)
Usage•••frequent
Pronunciations

As word

1
kai1
book format, similar to in-4°, in-8° etc (a 16-kai format 16開|16开 [shi2 liu4 - kai1] is roughly A4) (abbr. to 開|开 [kai1])
2
ben3
book format, similar to in-4°, in-8° etc (a 16-kai format 16開|16开 [shi2 liu4 - kai1] is roughly A4) (abbr. to 開|开 [kai1])