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"AB" .lower "bc" .upper ; returns abBC，这一点在体育直播中也有详细论述
，详情可参考PDF资料
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As Friedmann stuffed coins into the duffelbag, he asked Gambill where he hid cash. Gambill said that the only cash was in the register.。关于这个话题，PDF资料提供了深入分析
「有時一聲，接連好幾聲」，手機不斷響出警報。Afaf 心跳一度達到140，整夜難眠。當晚，杜拜機場宣布所有航班無限期停飛。