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反义词:impure
例句
These sheets are 100% pure cotton and comfortable to sleep on.
这些床单是100%纯棉的,睡在上面很舒服。
Children have pure thoughts.
孩子们有纯洁的思想。
Class should not only teach pure theory, but also combine with practice
学生课堂上不应只教授纯理论,还应结合实际操作
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