讨论了

1.
discussed
权威统计2000个最频英语单词4_龙浩人... ... billion 十亿 discussed 讨论了 achievement 成就 ...
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Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard