sycamore maple

例句：

1. 1. The sycamore tree is a symbol of the American Revolution.
   橡树是美国独立战争的象征。
2. 2.The sycamore tree is one of the most common trees in the United States.
   橡树是美国最常见的树种之一。
3. 3. The sycamore tree produces beautiful white flowers in spring.
   橡树在春天会开出美丽的白色花朵。