Since it is maintained as a tree with varying sized nodes, there are no limitations on the allocation block sizes.

因为它采用树的形式，树中有不同大小的节点，所以对分配的块大小没有限制。

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If the block found in the size tree is exactly the required size, the block is removed from both the size and the address tree and then returned to the caller.

如果在大小树中找到的块正好是请求的大小，那么从大小树和地址树中删除这个块并返回给调用者。

youdao

First, the node from the free tree with the lowest address (which is greater than or equal to the requested block size) is removed.

首先，删除空闲树中(大于或等于请求的块大小的)地址最低的节点。

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When the tour first launched in October 2001, Perry Street residents were hesitant about the specter of hundreds of tourists traipsing down their otherwise quiet, tree-lined block each week.

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