Hexogen
[化] 黑索今; 环三亚甲基三硝基胺
🗣️ 情景例句
If someone doesn't buy it before then,
如果在此之前没有人买走的话。
At noon I had lunch with a friend of mine.
在中午我与一个朋友一起吃了午餐。
A week later, Mr Brain rang Zheng Jie and spoke to a friend of his.
一周以后，布雷恩先生打电话给郑杰，接电话的是郑杰的一位朋友。