小测验：选择正确的单词
improver [im'pru:və]
基本释义
英英解释
- someone devoted to the promotion of human welfare and to social reforms
[同]
do-gooder, humanitarian, improver - a component that is added to something to improve it
[同]
improver, addition, add-on
[例]
- the addition of a bathroom was a major improvement
- the addition of cinnamon improved the flavor
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