Any of various swallows with squarish or slightly forked tail and long pointed wings; migrate around martinmas.
任何尾巴有点方且成叉形、翅膀长而尖的燕子；大约在圣马丁节前后迁移。
Where the iMac is squarish and silver, the XPS One is all black and rectangular, with speakers attached to the sides and a wide glass base.
iMac形状较为方正，颜色为银色，而XPS One则是通体黑色的长方形，两旁是音箱所在，还有个宽宽的玻璃底座。
Where the iMac is squarish and silver, the XPS One is all black and rectangular, with speakers attached to the sides and a wide glass base.
iMac形状较为方正，颜色为银色，而XPS One则是通体黑色的长方形，两旁是音箱所在，还有个宽宽的玻璃底座。
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