英語の質問です 速単上級の英文の The important thing is that our brains are about three times larger than would be expected for an ape that weighs as much as we do; that weights as much as we doのところがわかりません このdoはなんですか？ 解説には =as much as we human beings weigh と書いてあるのですが we human beings weighの意味がweの後に名詞？となりわかりません 回答よろしくお願いします