英语词汇“promethium”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	promethium
释义	promethium noun uncountable chemistry UK /prəˈmiːθiəm/ DEFINITIONS1 1 a chemical element that is a radioactive metal. Its symbol is Pm. Synonyms and related words Chemical elements actinium alkali metal aluminium promethium noun uncountable chemistry US /prəˈmiθiəm/ DEFINITIONS1 1 a chemical element that is a radioactive metal. Its symbol is Pm. Synonyms and related words Chemical elements actinium alkali metal aluminum
随便看	begging bowl begging letter begin beginner beginner’s luck beginning be glad of something be glad to do something be glued to something beg off be going begging be going soft (in the head) be going spare be going to do something begone begonia be good company be good to go beg or borrow something be/go round the bend begot begotten begpacker be green with envy begrime

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