在春天，一种叫做柔荑花科花的小花内部一个被状物的小帽子会发育成为橡树果。

In Spring, tiny flowers called catkins blossom, then develop into acorns, which form inside a cap called a cupule.

youdao

在春天，一种叫做柔荑花科花的小花内部一个被状物的小帽子会发育成为橡树果。

In Spring, tiny flowers called catkins blossom, then develop into acorns, which form inside a cap called a cupule.

youdao