Umbrae
n. 本影, 暗影, 蚀时的地球( umbra的名词复数 )
🗣️ 情景例句
He stands a good chance of getting the job.
他很有希望得到那份工作。
I ask him to wait a few minutes.
我要求他等几分钟。
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。