Talweg
深泓线, 最深谷底线
🗣️ 情景例句
Do you have any questions in mind about them, Mr. Martin?
你还有什么问题吗，马丁先生？
I'm afraid you will catch the Influenza.
我怕你会感染到流行性感冒。
It doesn't matter. It's not important. But my friends call me Jim for short.
没关系。这不重要。不过我的朋友们为了简便都叫我吉姆。