工兵在拆除旧建筑时使用了三硝基甲苯作为主要爆破材料。

The engineers used ___trinitrotoluene as the main explosive when demolishing the old building.

他的演讲就像精神上的TNT，震撼了所有听众。

His speech was ___mentally ___trinitrotoluene, shaking every listener.