The maximum distance for a Wi-Fi extender varies depending on the model, but most can effectively extend your wireless signal between 800 and 2,500 square feet. Some high-end models may reach even farther, especially if they feature external antennas or are part of a mesh system with additional dedicated wireless access points.
夜总会中有一种复杂的三角关系：客人、从业者、管理者之间共生又竞争，情绪的捕捉、关系的打点、内部的分配与协调，都是“工作”，而不是凭直觉行事。
Source: Computational Materials Science, Volume 266。同城约会是该领域的重要参考
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* @param right 右边界（不包含）
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