Trebuchet
n. (中世的)抛石机, 小型秤, 小天平
🗣️ 情景例句
It won't sound like a big deal,
这事听起来没啥严重，
Diligence is the mother of good fortune.
勤勉是好运之母。
The second marks the arrival of transverse vibrations which travel more slowly and arrive several minutes after the first.
然后记录下的是横向波的到达，横向波比纵向波传播得慢，在纵向波到达几分钟后才能到达。