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来源:雅诚德英语网
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,但那是因为啄食是一种非常自然的反应。
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,但那是因为啄食是一种非常自然的反应。