Boundary material
[化] 界面物质
🧩 词语组成解析
material
[mə'tɪrɪəl]
n. 材料，原料;素材;布，织物;适当人选;
adj. 物质的;肉体的;重要的，决定性的;辩证的，推论的;
🗣️ 情景例句
Australia is a unique country.
澳大利亚是世上独一无二的国家。
He that lies down with dogs must rise up with fleas.
近朱者赤，近墨者黑。
As a matter of fact, he was pretending to be ill.
实际上，他是在装病。