🧩 词语组成解析
n. （美）法兰克福香肠（等于wiener）
n. 卡曾斯（姓）
🗣️ 情景例句
which has been vacant for over a year now,
已空了一年多，
He was absent yesterday. Do you know why?
昨天他没到，你知道为什么吗？
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。