[计] 最内层

innermost layer的用法和样例：

例句

The innermost region of cotton is called lumen.棉纤维的最内层组织叫内腔。
Made with Mountain Merino Wool, these base layer tops are naturally itchless and soft on the skin.美利奴羊毛，作为最内层穿着，不瘙痒的柔软面料。

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