Fathometer
n. 音响测深仪
🗣️ 情景例句
If you don't know a person's last name, use 'ma'am' or 'sir'.
如果你不知道一人的姓， 你应称呼他为 'ma'am' 或 'sir' 。
Sorry to bother you.
抱歉打扰你。
Everybody says I must be mad and they are probably right.
大家都说我肯定是疯了，也许他们说的是对的。