| 单词 | thalweg |
| 释义 | Word Frequency thalweg or talweg (ˈtɑːlvɛɡ) noun geography rare 1. the longitudinal outline of a riverbed from source to mouth 2. the line of steepest descent from any point on the land surface Word origin C19: from German, from Thal valley + Weg way, path |
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