I can't really hear what other students are talking about. Could you please summarize what they are saying?
I can't make out what anyone is saying. Can you paraphrase what they have said?
ーI can't really hear what other students are talking about. Could you please summarize what they are saying?
「他の生徒が話していることがよく聞こえないので、言っていることを要約してもらえませんか?」
to summarize で「要約する」
ーI can't make out what anyone is saying. Can you paraphrase what they have said?
「みんなの言っていることが聞き取れないので、言ったことを言い換えてもらえませんか?」
to make out で「聞き取る」
to paraphrase で「言い換える」
ご参考まで!