我觉得这里取write不及物，of作关于的含义

write of =write about

我查了一下，write of是个词组，意为“把……当做写作题材”，所以，很好理解了~

1 I deplore the writings of so-called military history by people concerned with rushing into print so as to catch a market that is still fresh.
我对于由那些人来编写所谓的军事史表示悲叹，他们只顾仓促付印，以求赶上市场还很兴旺的时机。
2 Peter wrote of his adventures in the war every week.
彼得每星期都写他在战争中的冒险经历。
上述是海词查的。不过我感觉，这里of去掉这个句子也成立，符合句法吧。
@lazyhave@trivialtrinket@AJ_Rhythm