noun 下载 🔗分享 层云 A principal, low-level cloud type in the form of a gray layer with a rather uniform base, usually not associated with precipitation, and capable of producing corona phenomena and a weak, uniform luminance; abbreviated St. Examples : "The gray stratus clouds hung low in the sky this morning, making it feel like the day would be gloomy. " 今天早上，灰色的层云低低地悬挂在空中，感觉一整天都会阴沉沉的。 weather nature 与AI对话词汇游戏阅读练习
