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A small balloon was sent up first to check the weather.
先发射一只小气球以检测天气。
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When the little guests leave, they each get a small present and a balloon.
小客人们走的时候，每人可得到一份小礼物和一个气球。
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When the little guests leave, they each get a small present and a balloon.
小客人们走的时候，每人可得到一份小礼物和一个气球。
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