3) cloudy day observation
云天观测
1.
This paper discussed the concept of classification formation and evolvement about cloudy day observation experiment teaching on Meteorology and Climatology;put forward the method that should be adopted in cloudy day observation experiment teaching.
结合多年来的气象学实验教学经验,在分析云的形成及其与大气运动的关系等内容基础上,提出了云天观测教学应当采用的教学方法。
4) sometimes it's cloudy,
有时多云或有风，
5) a calm, cloudless day
无风无云的一天.
6) There were masses of dark clouds in the sky.
天上有朵朵乌云.
补充资料：天有不测风云
风云：变化动荡。形容事物有无法预料的变化：天有不测风云，人有旦夕祸福。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条