sun /sʌn/ n. 1.太阳(常与the连用)The sun is nearly 150 million kilometres away from the earth. 太阳距地球约1.5亿公里。with the sun 在太阳升起(落下)时: He gets up (goes to bed) with the sun. 他日出(日落)起床(睡觉) 2.阳光:Don’t have the sun on the baby’s face. 不要让阳光照在孩子的脸上。in the sun 在阳光下:They are lying in the sun.他们在晒太阳。 


sunny /ˈsʌni/ adj. 1.阳光灿烂的,晴朗的:Let’s find a sunny room to have a rest.让我们找个向阳的房间来休息。I hope it will be sunny tomorrow. 我希望明天天气晴朗。2.欢乐的,喜悦的:She always has a sunny smile on her face. 她总是面带愉快的微笑。


sunburnt /ˈsʌnbə:nt/ adj. 晒伤的,晒黑的:Turn over or your back will get sunburnt.翻过身去,不然你的后背要被阳光灼伤的。The skiing instructor was a tall, sunburnt man.滑雪教练是一个高高个子晒得黑黑的男子。