sometimes feel less than
有时觉得自己不够
以上为机器翻译结果，长、整句建议使用 人工翻译 。
"However, as Answers is a broad based community site we get responses from many types of people and sometimes the asker may feel that some answers are less helpful than others, " he said.
WSJ: Quora and Others Are Racing to Fill Gaps Left by Google
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