植树节
Arbor Day/Tree Planting Day
植物节是个人或是团队一起种植和关爱树木的节目。许多国家都庆祝植树节，不过虽然都是在春天，但根据天气和合适植树的时间不同，植树节的具体日期也有不同。
Arbor Day is a holiday in which individuals and groups are encouraged to plant and care for trees. Many countries now observe a similar holiday. Though usually observed in the spring, the date varies, depending on climate and suitable planting season.
桦树
birch
木棉
kapok
枫树
maple
橡树
oak
橄榄树
olive
核桃树
pecan
松树
pine
柳树
willow
树皮
bark
树叶
leaf
树枝
limb
树干
trunk
树根
root
落叶树
deciduous
常青树
evergreen