英语词汇“备择活动”的翻译、意思、用法、释义-英汉汉英词典

单词	备择活动
释义	同择一活动--备择活动
随便看	debriefer debriefing debriefings debriefs debris debris apron debris avalanche debris bag debris barrier debris basin debris bug debris collecting vessel debris collector debris cone debris dam debris dam} debris(detritus) debris,débris debris fall debris-- fission-product debris flood debris flow debrisflow debris glacier debris ice