屏东县 is Taiwan's tropical southern county - home to 垦丁国家公园 (Kenting National Park), mango orchards, and 恒春 (the setting of the 2008 film 海角七号). The name means 'east of 半屏山' (Banping Mountain in Kaohsiung), reflecting that before 1920 the area was called 阿猴.
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In mainland texts 屏东 is almost always paired with 台湾 or used as part of 屏东县; by itself the character combination is rare elsewhere.