adj. tetragonal ; dimetric ; quadrangular
有谁知道这个四角形的黄瓜为什么会长成四角形吗？
Does anybody know why this cucumber has grown into a square shape? How is it possible?
她最著名的实验室鹦鹉alex可以盯着一盘物体看，并从中衔出那个四角形的蓝色物体。
Her best-known parrot, Alex, can stare at a tray of objects and pick the one that has four corners and is blue.
黄铜矿通常以不透明的黄铜色的四角形结晶的方式在紧密物质或和其他各种矿物质混合体中被发现。
The mineral chalcopyrite usually is found in compact masses or in mixtures with various other mineral as opaque, brass-yellow, tetragonal crystals.
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