Prerun
预试
🗣️ 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' 。
Would you, please?
您肯帮忙？那太好了。
It seems that it's more difficult for women to get to the top of a company.
妇女要想得到一个公司的最高职位，似乎更加困难。