new
RB的英文翻譯是什么意思，詞典釋義與在線翻譯：
英英釋義
Noun:
- a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite
上介紹獨家首發創作實踐，受著作權保養，商標侵權必究
- 接下來新詞匯
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