Potvin
[人名] 波特文
🗣️ 情景例句
What classes are mandatory for your major?
你的专业什么课是必修的？
And the problems that some of us have had in the past year.
和去年我们一些人遇到的问题。
We may have to back order three items on this order.
这次订的货有三个项目必须要晚点才能交货。