help·ful·ness [ˈhelpfəlnəs] 名词 no pl
- helpfulness
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- helpfulness (usefulness) of tool, comment
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- helpfulness
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- helpfulness
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- helpfulness
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- helpfulness
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浏览词典
- helmsman
- helmswoman
- helot
- help
- help along
- helpfulness
- helping
- helpless
- helplessly
- helplessness
- helpline