quick-acting explosive 快作用炸药 ; 速爆炸药
acting explosive
代理爆炸
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Mutallab,an engineering student who studied in Britain, told investigators he was acting on instructions from al-Qaida and got the explosive materials in Yemen.
VOA: standard.2009.12.26
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