人类的基本嗅觉有四种，即香、酸、糖味和腐臭。
Basic smell of the mankind has4kinds namely flavour of sweet acerbity candy and moldy.
人类的基本嗅觉有四种，即香、酸、糖味和腐臭。
Basic smell of the mankind has 4 kinds, namely flavour of sweet, acerbity, candy and moldy.
对于大鼠，其社会行为基本包括四处闻味和打闹。
For rats, social behavior essentially consists of sniffing and play fighting.
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