1. 纯粹的；不掺杂的
A pure substance is not mixed with anything else.
pure的翻译
e.g. ...a carton of pure orange juice.
一盒纯橙汁
2. 纯净的；洁净的；不含有害物质的
Something that is pure is clean and does not contain any harmful substances.
e.g. In remote regions, the air is pure and the crops are free of poisonous insecticides.
在偏远地区，空气很纯净，庄稼也不施用有毒的杀虫剂。
e.g. ...demands for purer and cleaner river water.
需要更纯净、更清洁的河水