She will not help her own brother, let alone a stranger.
她连自己的弟弟都不肯帮助，更不用说一个陌生人了。
Because people would not meet the habit of hugging, let alone a stranger and a hug.
因为国人本来就没见面拥抱的习惯，更不要说和陌生人拥抱了。
Because people would not meet the habit of hugging, let alone a stranger and a hug.
因为国人本来就没见面拥抱的习惯，更不要说和陌生人拥抱了。
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