Pigface
n. <澳>海滨苹果(一种番杏科观赏植物)
🗣️ 情景例句
Excuse me, ma'am. Ticket, please.
对不起， 太太 ，车票请拿出来看一下。
Out of sight, out of mind.
久违情疏。眼不见，心不烦？
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。