Doppler's phenomenon
[医] 多普勒氏现象(物理)
🧩 词语组成解析
🗣️ 情景例句
What is she calling about?
她打来说什么？
Please take a brief look at the list of words.
请把单词表过目一下。
It was mailed last week.
上个礼拜我们还没收到。