Hallmarking
v. 给（金、银）打上纯度印记( hallmark的现在分词 )
🗣️ 情景例句
Let's have a talk about it in advance.
我们事先商量一下。
Have you washed any cars?
你洗车吗？
Macaroni has been grown in this area for over six hundred years.
通心粉在这个地区已经种植了600多年了。