Retrogradation
n. 逆行, 退化, 倒退\\n[机] 退减作用
✅ 同义词
🔴 反义词
🗣️ 情景例句
If you wish to enter you'll first need gh show return dicket.
如果你想进入的话，首先出示你的双程票。
Arthur must send that letter soon.
亚瑟，你必须立刻投递那封信。
During the summer, I noticed tat the leaves of the tree were beginning to wither.
到了夏天，我发现树叶开始枯萎，