qiū / tiān / yī / dào / xǔ / duō / luò / yè / zhí / wù / de / yè / zi / jiù / huì / biàn / huáng / bìng / tuō / luò

秋天一到，许多落叶植物的叶子就会变黄并脱落。

When autumn arrives, the leaves of many deciduous plants turn yellow and fall off.