1. purity n. 纯净,清洁
例句：A lily symbolizes purity. 
百合花象征纯洁。 

2. treat vt. 对待;看待
例句：She treated me all right.
她对我还不错。

3. rectangle n. 矩形,长方形
例句：He folded his newspaper into a neat rectangle.
他将报纸折成一个整整齐齐的长方形。

4. describe vt. 描写,描绘
例句：Words cannot describe the beauty of the scene.
语言难以描述那景色之美丽。

5. seek vt. 寻找;探索;追求
例句：They were seeking employment.
他们在找工作。

6. issue vt. 发行;发布
例句：The post office issued the stamps last week.
上星期邮局发行了这些邮票。


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