| 释义 |
Sem.tex5sem7teksn [U]trademark a very powerful explosive made in the Czech Republic捷克共和国产的烈性炸药Semtex is very difficult to detect and is used by terrorist organizations.捷克产的烈性炸药很难察觉，常被恐怖主义组织使用。The police said 100lb of Semtex were used to make the bomb.警方说100磅捷克产的烈性炸药被用来制造这枚炸弹。
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