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当她离开飞机场的时候，她一次又一次地向我们挥手告别。
When leaving the airport, she waved again and again to us.
youdao
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当离开机场的时候，她向我频频挥手。
She waved again and again to us when leaving the airport.
youdao
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当他看见她的时候，就挥手打了个招呼。
He waved hello when he saw her.
youdao
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当他看见她的时候，就挥手打了个招呼。
He waved hello when he saw her.
youdao