Thalweg
最深谷底线
🔁 扩展释义
【法】 航道分界线
🗣️ 情景例句
He spends too much money on his hobbies.
他在爱好方面花了很多钱。
Live to learn and learn to live.
生而学之，学而生之。
Broadly speaking, human beings may be divided into three classes: those who are toiled to death,
劳累至死的人、