Fettling
n. 涂炉床材料\\n[机] 清理
🗣️ 情景例句
This has been a hard course for me.
这门课对于我来说很难。
Even Homer sometimes nods.
人非圣贤，孰能无过。
So it is! Lily, did you hear what I said?
是呀！莉莉，你听见我的话了吗？