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请清晰地及大声地说出口头命令。
Speak the verbal command clearly and loudly.
youdao
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它们也听从口头的命令，似乎在学习人类的语言。
They also respond to spoken orders and seem to learn man's language.
youdao
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它们也听从口头的命令，似乎在学习人类的语言。
They also respond to spoken orders and seem to learn man's language.
youdao