Recommend the one with square shape, and it is easier to play with.

推荐方型的，锲型设计，吹奏更容易。

youdao

Push the tissue into the groove, so it forms the square shape of the groove.

把纸巾压在槽里，这样子可以把槽里擦干净。

youdao

The square's distorted faces change as the main square shape placed for each of the room.

方格中的变形面由每个房间所需不同位置的方形形状变化而来。

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The new Shanghai stock exchange is built in the shape of a hollowed square to help trap positive energy, a nod to the ancient geomantic rituals of feng shui.

CNN: ASIANOW - TIME Asia | China: Inside China's Search for Its Soul

The 52, 000-square-foot structure is a dream taking shape for Vern Raburn, chief executive of Eclipse Aviation.

FORBES: Ready for Takeoff

Now round in shape, they have also been square and rectangular.

BBC: 7 questions on blue plaques