Vallachite
基本释义
混层黏土
实用场景例句
日常对话
He seemed unhappy with the results of the exam.
他对考试成绩似乎不满意。
校园生活
Many students were unhappy with the new school policy.
许多学生对新校规不满意。
社会场景
The residents were unhappy with the noise from the construction site.
居民们对建筑工地的噪音感到不满。
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