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来源:雅诚德英语网
So, you could train a pigeon to peck for food but that's because pecking for food is a very natural response.
你可以训练鸽子啄食,但这只是因为啄食是种自然反应而已。
So, you could train a pigeon to peck for food but that's because pecking for food is a very natural response.
你可以训练鸽子啄食,但这只是因为啄食是种自然反应而已。