by1850,thefurtradehadmostlycometoanend,butnotforthereasonsyoumightassume.4545什么意思?

Question

by 1850,the fur trade had mostly come to an end ,but not for the reasons you might assume. 4545 什么意思?

Answer 1

到1850年为止,毛皮贸易大部分已经结束,但不是你会想象到的原因.
——语言点
by 1850,j介词 by 表示“不迟于,到...时为止”,后面的句子一般要求用过去完成时
come to an end ,短语,表示“结束、终止、完结”
for the reasons (that) 复合连词,意思是“由于...理由、理由是”