A polymer is a substance of high molecular weight, well above the size of the compounds considered so far.

聚合物是一种高分子的物质，其大小远远超出迄今所提到的各种化合物。

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A polymer is a substance of high molecular weight, well above the size of the compounds considered so far.

聚合物是一种高分子的物质，其大小远远超出迄今所提到的各种化合物。

youdao