英语词汇principal challenge是什么意思，principal challenge的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-电脑手机教程网

单词	principal challenge
释义	DEFINITIVE EXAMPLES 权威例句〔briefly〕Briefly, there are three principal challenges.简言之，有三大挑战。麦克米伦高阶
随便看	prolonged interrogation prolonged labor prolonged lenticular prolonged pregnancy prolonged sleep prolonged succession prolonged value prolonging prolonging prolonging prolonging life prolongs prolonium iodide prolotherapy prolotherapy prolusion proluton proluvial proluvium prolycopod phozy php PHP php Phractolaemidae

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