When you are getting sucked in to the fourth dimension, you may experience your journey as going through a tunnel.

被带进四维空间时，你会感觉这段旅程像在穿越隧道一样。

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Time is sometimes called the fourth dimension.

时间有时被称为第四维。

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Space is considered to be three-dimensional and time is thought of as the fourth dimension.

空间被认为是三维的，而时间则被看作第四维。

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As the 3-D fad waned in 1960, producer Michael Todd Jr. tried to take the moviegoer into the fourth dimension.

FORBES: Flops

"We're proposing that the fourth dimension is time and that over time static objects will transform and adapt, " he told the BBC.

BBC: TED 2013: 4D printed objects 'make themselves'