叶落知秋[yè luò zhī qiū]
词典One falling leaf is indicative of the coming of autumn.：叶落知秋；一叶知秋。
词典One leaf's falling tells the coming of autumn.：叶落知秋。
词典叶落知秋在线翻译
词典When the leaves fall, we know that autumn is here.
叶落知秋[yè luò zhī qiū]
One falling leaf is indicative of the coming of autumn.; One leaf's falling tells the coming of autumn.; When the leaves fall, we know that autumn is here.