一角硬币

例句：

1. 1. The oak tree is known for its large acorns.
   橡树以其大橡实而闻名。
2. 2. The acorn was the firstthing she found in the forest.
   她首先在森林里发现了橡实。
3. 3. The acorns are often used as food byanimals.
   橡实通常被动物用作食物。