四维的英文怎么说
四维的英文：extremities
参考例句：
[*]Four-dimensional space-time defies visualization
四维空时难以形象表示。[*]The adjuster that moves the seat up and down and from front to rear is called a four-way adjuster.
能够把座位升高、降低和向前后倾斜的调节器叫做"四维调节器"。extremities是什么意思：
n. 端点，手和足，绝境
[*]in an extremity
智尽力竭|陷入绝境 [*]relative extreme
相对极值 [*]It is extremely corrosive.
它是极强的腐蚀剂。[*]It was an extremely fine day .
那是一个非常晴朗的日子。 [*]An extremity of a solid is a surface.
立体的边界之一是一个面。
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