Notice how this method accounts for possible weak references in the queue with the do-while loop.

请注意该方法如何用 do-while 循环来处理队列中可能存在的弱引用。

The difference with the do while loop, as the syntax kind of suggests, is that this construct is going to do something no matter what.

作为建议的语法，do，while循环的不同之处,是这个结构不管怎么样,它会做一些事情。