A flamingo can sleep while standing on one leg.
火烈鸟可以单腿站立睡觉。
Do you think you could sleep standing on one leg?
你觉得你能一条腿站着睡觉吗？
Bring your left leg forward and return to standing.
左腿向前迈，回到站立姿势。
Afew water birds sleep standing on just one leg.
有些水鸟一只脚站着睡。
Afew water birds sleep standing on just one leg.
有些水鸟一只脚站着睡。
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