He could feel the heat of the sun on his back.

他能感觉到太阳照射在背上的热度。

《牛津词典》

The earth would be a frozen ball if it were not for the radiant heat of the sun.

要是没有太阳的辐射热，地球将会是一个冰冻的球体。

《柯林斯英汉双解大词典》

Left out in the heat of the sun, tapes easily warp or get stuck in their cases.

放在太阳底下暴晒后，磁带容易翘曲变形或卡带。

《柯林斯英汉双解大词典》

One reason is that heat from the sun can go through many of the building materials commonly found in cities.

VOA: special.2010.03.02

This is because lighter colors take in less of the strong heat of the sun than dark colors do.

VOA: special.2009.08.19

Black-painted surfaces that receive the sun's heat become hotter than surfaces of any other color.

VOA: special.2009.04.20

This same Nobel prize winner also wants to paint roads and roofs white to reflect sun heat away from earth to reduce global warming.

FORBES: NRC: Vermont Yankee Nuclear Power Plant 'Good to Go' for 20 More Years

The big red-grape-growing regions of South Australia, such as Coonawarra and the Barossa Valley, get enough sun and heat to ripen the fruit every year.

FORBES: Chateau Southcorp

As a comet gets closer to the sun, the sun's heat causes these elements to melt, spewing out dust and gas in a brilliant tail.

CNN: Welcome to the year of the comet (we hope)