Interclass
a. 年级之间的
🗣️ 情景例句
Mr. Lu, we are very pleased to be able to offer this product to you.
陆先生，我们很高兴能提供这个产品给您。
Sorry to have kept you waiting.
抱歉使你久等了。
We can work it out.
我们可以解决这个问题。