Foreign substance
[化] 外来杂质; 夹杂物; 异物
🧩 词语组成解析
🗣️ 情景例句
Mrs. Montefiore told me that
Montefiore太太告诉我
There must be someone behind the door.
门后必然有人在。
This year we are going to help them with the rice harvest.
今年我们准备去帮他们收水稻。