Ethines
[化] 炔烃
🗣️ 情景例句
Good afternoon, Mrs. Martin. I've come to see Mr. Martin.
您好，马丁夫人。我来看看马丁先生。
Let me tell you about our product.
关于产品一事让我向你说明。
And I want these price lists as well.
还有这些价目表我也要。