当我们还在拆箱的时候，全月食出现了。 我们把一张躺椅拖进厨房，看着月亮在地球的阴影扫过之际变成古铜色。
We were still unpacking boxes when there was a total lunar eclipse, and we pulled a lounge chair into the kitchen and watched as the earth's shadow slid across a terra cotta moon.
当把一个“数据”从值类型转换成引用类型的时候，就叫做“装箱”，反之叫做“拆箱”。
When the data moves from value types to reference types its termed as 'Boxing' and the vice versa is termed as 'UnBoxing'.
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