Etymologist
n. 词源学家
✅ 同义词
📖 牛津释义
etymologist
n
student of or expert in etymology 词源学研究者; 词源学家.
🗣️ 情景例句
That's wonderful!
真出色！
Have you marketed your product yet?
你们的产品尚未推出市场吗？
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）