P-waves
(p-wave 的复数) abbr. pressure wave 压力波
🧩 词语组成解析
n. 波（wave的复数形式）
🗣️ 情景例句
Which part of the paper do you read first?
你会先看报纸的哪一部分？
Who told you?
谁告诉你的？
About once a month. Not too often, because neither of us has much time. We both have too much work to do.
大约每月一次。不太经常写信，因为我俩的时间都很紧。我们都有做不完的事。