He kicked and shouted as loud as he could. Then a great grey body hit him. It almost rolled him over in the water.
他尽可能地踢打和喊叫，然后一具巨大的灰色身躯击中了他。它差点把他撞翻到水里。
Grey body
原声例句
VOA Special 2019年11月合集
VOA Special 2019年11月合集
He went deep down and looked around. He was about to rise to the top and start swimming when he saw a long grey body below him.
向深处游去，环顾四周。他正要开始游回海面时，看见下面有一个长长的灰色身躯。
中文百科
黑体 (物理学) Black body
（重定向自Grey body）
在热力学中，黑体（英语：Black body），旧称绝对黑体，是一个理想化的物体，它能够吸收外来的全部电磁辐射，并且不会有任何的反射与透射。随着温度上升，黑体所辐射出来的电磁波与光线则称做黑体辐射。这个名词在1862年由克希荷夫所提出并引入热力学内。
英语百科
Black body 黑体 (物理学)
（重定向自Grey body）
![Effective temperature of a black body compared with the B-V and U-B color index of main sequence and super giant stars in what is called a color-color diagram.[36]](/uploads/202501/16/Effective_temperature_and_color_index5737.png)
A black body is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence. A white body is one with a "rough surface [that] reflects all incident rays completely and uniformly in all directions."
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