Foreign impurity
[化] 外来杂质; 夹杂物; 异物
🧩 词语组成解析
🗣️ 情景例句
Good-bye. And hope to see you soon.
再见。希望很快再见到你们。
I heard you'd been sick.
听说你身体不舒服。
He passed his exams, and even better, when he left university he had earned enough money to start his own business, offering guide services to tourists.
他考试过关了，更惬意的是，他大学毕业时，所赚的钱足够他开始经营自己的行业--为游客提供导游服务。