autumn这个单词作名词意思是秋天,秋季,成熟期,作形容词意思是秋季的,秋天的,它是可数名词,复数为autumns 扩展资料The precipitation conditional analysis of the typhoons landing in western Guangdong during autumns秋季粤西登陆台风的'降水分析The autumns in Beijing are very beautiful.北京的秋天都很美。
Transpiration rate of seedling on sun day surpass that of cloudy day and summers surpass autumns.各树种在不同月份、不同天气状况下的蒸腾速率日变化规律不同。Autumns are also drier, so grapes can be left to ripen on the vines longer.秋季也很干燥,因此成熟的葡萄可在树上保存更长时间。