枫树的英文单词是"maple tree"。以下是几个关于枫树的英文句子：1. The maple tree in my backyard turns red every fall.（我家后院的枫树每年秋天都会变成红色。）2. Canada's national flag features a red maple leaf.（加拿大国旗上有一个红色的枫叶。）3. The sap from maple trees is used to make maple syrup.（枫树的汁液可以用来制作枫糖浆。）4. The park is filled with beautiful maple trees.（公园里到处都是美丽的枫树。）5. The maple tree provides shade in the summer and beautiful colors in the fall.（枫树在夏天提供阴凉，在秋天则变成美丽的颜色。）