??? 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， 你應稱呼他為 'ma'am' 或 'sir' 。
Have you somewhat to do tomorrow,do it today.
明天如有事，今天就去做。
And because I was deaf, I could not learn to speak.
因為我耳聾，我不能學說話。