The skin may become red and hot as blood vessels dilate in an attempt to increase heat dissipation, sometimes leading to swollen lips.
中暑的时候皮肤会发红发热，因为此时血管扩充，试图增大热量散发，有时候嘴唇也会肿起来。
2
If I would heat you up to 3,000 degrees Kelvin, you would become red-hot.
3000开尔文，你会变成一个红点，你事实上。
3
The residual deleterious elements in steel lead to products occurring red brittleness surface crack and temper brittleness, and lead to hot strength of heat resistant steel decreasing.