Derival
n. =derivation
🗣️ 情景例句
You and Dr. Philip Stewart--
你和Philip Stewart医生
I don't think so.
我可不这么想。
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。