这个短语的英语表达是 "lying in the sun." 来源可能源于人们在温暖的阳光下躺着放松的习惯。下面是一些英文例句：
I pke to pe in the sun on the beach. 我喜欢在海滩上躺在阳光下。
She was lying in the sun, enjoying the warm weather. 她躺在阳光下，享受着暖和的天气。
The cat was lying in the sun, basking in the warm pght. 猫躺在阳光下，享受着温暖的光线。
希望这些例句对您有帮助。