篇幅: length (of a piece of writing), space occupied on a printed page...
扇: fan, sliding, hinged or detachable flat part of sth, classifier for doors, windows etc...
发育: to develop, to mature, growth, development, (sexually) mature...
改版: to revise the current edition, revised edition...
刀: knife, blade, single-edged sword, cutlass, (slang) dollar (loanword), classifier for sets of one hundred sheets (of paper), classifier for knife cuts or stabs...
