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
I'm wiped out by the time I get off work.
下班时，我都累趴下了。
It is my pleasure to introduce the keynote speaker for today.
我很荣幸地介绍今天的主讲人。
and that their commissariat had no organization, but depended on irregular raids.
他们的军需供应处于无组织状态，只是靠临时抢夺来维持。