Foreign material
[化] 外来杂质; 夹杂物; 异物
🧩 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
He started with them almost forty years ago.
他在那里做了快四十年了。
Anger rests in the bosom of folly.
怒火常寓于蠢人的胸中。
How many players are there in a team?
一个队里有多少名队员？