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来源:雅诚德英语网
"That's why, when you walk, it's so economical and USES so little energy," he says.
“这就是为什么在你走路时会如此省力,”他说道。
"That's why, when you walk, it's so economical and USES so little energy," he says.
“这就是为什么在你走路时会如此省力,”他说道。