A region of storage used to hold data.
一段用来存放数据的存储区域。
You can't tell in advance what alignment an allocated region will have, so your best bet is to allocate a bit of extra storage and get an aligned region within it. Here's one way to do that
您无法提前知道所分配的一段区域是怎么对齐的，因此最好的方法就是多分配一点存储空间，并获取其中的一个对齐区域。
An object is a named region of storage; an lvalue is an expression referring to an object.
这时候的左值可以解释为：对象是一个命名的存储区域，左值是对象引用的表达式。
应用推荐