Phyllodocidae
叶须虫科
🗣️ 情景例句
Yes, it is possible that we forgot to buy cinnamon.
是的， 我们可能忘了买肉桂。
Would you please open the door for me?
请你帮忙开个门好吗？
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。