Semtex
n. 塞姆汀塑胶炸药（商标名称）；可变塑料炸弹
🗣️ 情景例句
Americans consider it extremely bad manners to be late.
美国人认为迟到是一种极不礼貌的做法。
Empty vessels make the greatest sound.
空桶响声大。
But the first people who were like ourselves lived so long ago that even their sagas, if they had any, are forgotten.
但是，和我们相似的原始人生活的年代太久远了，因此，有关他们的传说既使有如今也失传了。