they could only reply
他们只能回答
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Mostly they said in the web there are a lot of materials and very educational, but they could not send or reply except reading only.
大家说网上的资料很多，很有教育性，但是不可以发帖或回帖，只可阅读。
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