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
How much does a return ticket cost?
返程票多少钱？
I am old enough to make up my own mind.
我已经长大了，可以自己拿主意了。
The experts were now fully convinced that the animal was a puma,
专家们如今已经完全肯定那只动物就是美洲狮，