merge(arr, left, mid, right); // 合并两部分
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此外，還有各種新科技，從提供即時回饋的聊天機器人，到虛擬實境（VR）與擴增實境（AR）技術，讓你彷彿置身於與母語者對話的場景。然而，也有人指出，這種「快速流利」的承諾忽略了學習真正使用語言時不可或缺的要素，例如培養文化理解與細緻語感。，这一点在旺商聊官方下载中也有详细论述
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The abrupt shift in strategy was laid out by the space agency’s recently confirmed administrator, Jared Isaacman. Announcing the changes on Friday, he said that Nasa would introduce at least one new moon flight before attempting to put humans back on the lunar surface for the first time in more than half a century, in 2028.