兒子:Dad, it's Arbor Day today. 爸爸,今天是植樹節呢。

　　爸爸:Do you know why Arbor Day is on March 12th? 知道為什么植樹節定在三月十二號嗎?

　　兒子:Yes, I do. Sun Yat-Sen died on March 12th, 1925. So the Arbor Day was fixed for this day in memory of him.我知道。孫中山先生是一九二五年三月十二號逝世的，為了紀念他，所以把植樹節定在了這一天。

　　爸爸:You're right. And this is a good time to plant trees across the whole country.沒錯。而且這一天對全國來說也是非常適合植樹的。