又掉了一片叶子 Has lost a leaf ; A leaf
掉叶子
Leaf drop
以上为机器翻译结果，长、整句建议使用 人工翻译 。
那个小男孩问他的父母为什么树在秋天掉叶子。
That little boy asked his parents why the leaves fall from the trees in autumn.
youdao
树开始掉叶子。很快，树也开始死了。
Leaves fell off the park tress, and pretty soon the trees started dying, too.
秋天，树木开始掉叶子了。
In fall, the trees lose their leaves.
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