In+the+autumn,+by+a+tremendous,+exhausting+effort--for+the+harvest+had+to+be+gathered+at+almost+the+same+time--

Brendan Ryu George Orwell is excellent at using hyphens and commas to make the sentence more interesting to read. Moreover, he striked out an “and” between tremendous and exhausting, which make the sentence more fluent and smooth. This also gives a little bit of emphasis on exhausting, since there is a short rest before exhausting. In addition, Orwell uses hyphens well to merge a lot of details in one sentence, and he does it with fluency and no awkwardness.