yeting1976
sun的读音是英 [sʌn] 美 [sʌn]
1、All living things need light and heat from the sun to live. 所有的生物都要靠太阳的光和热生存。
2、Light and radiant heat both travel through a vacuum, otherwise the sun's light and heat would not reach us. 光和辐射热都能通过真空，否则太阳的光和热就到不了我们这里。
3、A very small fraction of the sun's light and heat is emitted in such directions that after passing unhindered through interplanetary space, it hits the earth. 太阳发出的光和热只有极少的一部分畅通无阻穿越星际空间，然后到达地球。
4、The output of light and heat of the Sun requires that some 600 million tons of hydrogen be converted into helium in the Sun every second.太阳所产生的光和热需要每秒将六亿吨氢转化为氦。
5、The energy of the sun comes to the earth mainly as light and heat.太阳的能量是以光和热的形式传到地球上的。
