常見例句Flash in the pan, an explosion of gunpowder without any communication beyond the touchhole. 池內(nèi)火花，火藥爆炸，卻未到達(dá)槍口外。they apparently were fired by applying a red-hot wire to a touchhole drilled through the top. ）類似舊式汽水瓶，顯然經(jīng)由連至頂部火門的紅熱導(dǎo)線而發(fā)射。 返回 touchhole